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131434031200 = 25521710988663
BaseRepresentation
bin111101001101000010…
…1000010100001100000
3110120020212022120121111
41322122011002201200
54123134102444300
6140214023233104
712332025555223
oct1723205024140
9416225276544
10131434031200
11508170a1a8a
1221580ba8794
13c51800a0c4
14650bb195ba
153643bcb9ba
hex1e9a142860

131434031200 has 144 divisors (see below), whose sum is σ = 342858368160. Its totient is φ = 49026539520.

The previous prime is 131434031173. The next prime is 131434031207. The reversal of 131434031200 is 2130434131.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131434031207) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1438069 + ... + 1526731.

It is an arithmetic number, because the mean of its divisors is an integer number (2380960890).

Almost surely, 2131434031200 is an apocalyptic number.

131434031200 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 131434031200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (171429184080).

131434031200 is an abundant number, since it is smaller than the sum of its proper divisors (211424336960).

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

131434031200 is a wasteful number, since it uses less digits than its factorization.

131434031200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88809 (or 88796 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 131434031200 its reverse (2130434131), we get a palindrome (133564465331).

The spelling of 131434031200 in words is "one hundred thirty-one billion, four hundred thirty-four million, thirty-one thousand, two hundred".

Divisors: 1 2 4 5 8 10 16 17 20 25 32 34 40 50 68 80 85 100 109 136 160 170 200 218 272 340 400 425 436 544 545 680 800 850 872 1090 1360 1700 1744 1853 2180 2720 2725 3400 3488 3706 4360 5450 6800 7412 8720 9265 10900 13600 14824 17440 18530 21800 29648 37060 43600 46325 59296 74120 87200 88663 92650 148240 177326 185300 296480 354652 370600 443315 709304 741200 886630 1418608 1482400 1507271 1773260 2216575 2837216 3014542 3546520 4433150 6029084 7093040 7536355 8866300 9664267 12058168 14186080 15072710 17732600 19328534 24116336 30145420 35465200 37681775 38657068 48232672 48321335 60290840 70930400 75363550 77314136 96642670 120581680 150727100 154628272 164292539 193285340 241163360 241606675 301454200 309256544 328585078 386570680 483213350 602908400 657170156 773141360 821462695 966426700 1205816800 1314340312 1546282720 1642925390 1932853400 2628680624 3285850780 3865706800 4107313475 5257361248 6571701560 7731413600 8214626950 13143403120 16429253900 26286806240 32858507800 65717015600 131434031200