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131013020232100 = 2252311391911591859
BaseRepresentation
bin11101110010011111011000…
…100010000010100110100100
3122011212201111122022000221101
4131302133120202002212210
5114133004131134411400
61142350314533125444
736411243526462036
oct3562373042024644
9564781448260841
10131013020232100
1138821345467216
121283b24b489884
135814623187676
14244d0c7919c56
151022e38e0b56a
hex7727d88829a4

131013020232100 has 144 divisors (see below), whose sum is σ = 297128182579200. Its totient is φ = 50086220112000.

The previous prime is 131013020232091. The next prime is 131013020232121. The reversal of 131013020232100 is 1232020310131.

It is a super-2 number, since 2×1310130202321002 (a number of 29 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 81505971 + ... + 83097829.

It is an arithmetic number, because the mean of its divisors is an integer number (2063390156800).

Almost surely, 2131013020232100 is an apocalyptic number.

131013020232100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 131013020232100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (148564091289600).

131013020232100 is an abundant number, since it is smaller than the sum of its proper divisors (166115162347100).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

131013020232100 is a wasteful number, since it uses less digits than its factorization.

131013020232100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1592234 (or 1592227 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 131013020232100 its reverse (1232020310131), we get a palindrome (132245040542231).

The spelling of 131013020232100 in words is "one hundred thirty-one trillion, thirteen billion, twenty million, two hundred thirty-two thousand, one hundred".

Divisors: 1 2 4 5 10 20 25 31 50 62 100 124 139 155 191 278 310 382 556 620 695 764 775 955 1390 1550 1910 2780 3100 3475 3820 4309 4775 5921 6950 8618 9550 11842 13900 17236 19100 21545 23684 26549 29605 43090 53098 59210 86180 106196 107725 118420 132745 148025 215450 265490 296050 430900 530980 592100 663725 823019 1327450 1591859 1646038 2654900 3183718 3292076 4115095 6367436 7959295 8230190 15918590 16460380 20575475 31837180 39796475 41150950 49347629 79592950 82301900 98695258 159185900 197390516 221268401 246738145 304045069 442536802 493476290 608090138 885073604 986952580 1106342005 1216180276 1233690725 1520225345 2212684010 2467381450 3040450690 4425368020 4934762900 5531710025 6080901380 6859320431 7601126725 9425397139 11063420050 13718640862 15202253450 18850794278 22126840100 27437281724 30404506900 34296602155 37701588556 42262264591 47126985695 68593204310 84524529182 94253971390 137186408620 169049058364 171483010775 188507942780 211311322955 235634928475 342966021550 422622645910 471269856950 685932043100 845245291820 942539713900 1056556614775 1310130202321 2113113229550 2620260404642 4226226459100 5240520809284 6550651011605 13101302023210 26202604046420 32753255058025 65506510116050 131013020232100