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131302101100 = 225219269256901
BaseRepresentation
bin111101001001000110…
…1110001000001101100
3110112220200001211112111
41322102031301001230
54122401314213400
6140152551413404
712325534305322
oct1722215610154
9415820054474
10131302101100
1150759681a45
1221544984264
13c4c6896c61
1464d83b5d12
15363731b3ba
hex1e9237106c

131302101100 has 72 divisors (see below), whose sum is σ = 301037763600. Its totient is φ = 49571424000.

The previous prime is 131302101071. The next prime is 131302101107. The reversal of 131302101100 is 1101203131.

It is not an unprimeable number, because it can be changed into a prime (131302101107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 382650 + ... + 639550.

It is an arithmetic number, because the mean of its divisors is an integer number (4181080050).

Almost surely, 2131302101100 is an apocalyptic number.

131302101100 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 131302101100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (150518881800).

131302101100 is an abundant number, since it is smaller than the sum of its proper divisors (169735662500).

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

131302101100 is a wasteful number, since it uses less digits than its factorization.

131302101100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 257203 (or 257196 counting only the distinct ones).

The product of its (nonzero) digits is 18, while the sum is 13.

Adding to 131302101100 its reverse (1101203131), we get a palindrome (132403304231).

The spelling of 131302101100 in words is "one hundred thirty-one billion, three hundred two million, one hundred one thousand, one hundred".

Divisors: 1 2 4 5 10 19 20 25 38 50 76 95 100 190 269 380 475 538 950 1076 1345 1900 2690 5111 5380 6725 10222 13450 20444 25555 26900 51110 102220 127775 255550 256901 511100 513802 1027604 1284505 2569010 4881119 5138020 6422525 9762238 12845050 19524476 24405595 25690100 48811190 69106369 97622380 122027975 138212738 244055950 276425476 345531845 488111900 691063690 1313021011 1382127380 1727659225 2626042022 3455318450 5252084044 6565105055 6910636900 13130210110 26260420220 32825525275 65651050550 131302101100