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231203421440104 = 23892237607923879
BaseRepresentation
bin110100100100011100111101…
…110011100100100001101000
31010022121211102222002002111211
4310210130331303210201220
5220301014101342040404
62135421215134402504
766461616213332101
oct6444347563444150
91108554388062454
10231203421440104
1167739902a40043
1221b20932060434
139c01509aa76a9
14411443ba873a8
151bae1e90e3b04
hexd2473dce4868

231203421440104 has 64 divisors (see below), whose sum is σ = 438663755520000. Its totient is φ = 114228140302848.

The previous prime is 231203421440093. The next prime is 231203421440203. The reversal of 231203421440104 is 401044124302132.

It is a happy number.

It is a super-2 number, since 2×2312034214401042 (a number of 30 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9682278837 + ... + 9682302715.

It is an arithmetic number, because the mean of its divisors is an integer number (6854121180000).

Almost surely, 2231203421440104 is an apocalyptic number.

It is an amenable number.

231203421440104 is a deficient number, since it is larger than the sum of its proper divisors (207460334079896).

231203421440104 is a wasteful number, since it uses less digits than its factorization.

231203421440104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32290 (or 32286 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 31.

Adding to 231203421440104 its reverse (401044124302132), we get a palindrome (632247545742236).

The spelling of 231203421440104 in words is "two hundred thirty-one trillion, two hundred three billion, four hundred twenty-one million, four hundred forty thousand, one hundred four".

Divisors: 1 2 4 8 89 178 356 712 2237 4474 6079 8948 12158 17896 23879 24316 47758 48632 95516 191032 199093 398186 541031 796372 1082062 1592744 2125231 2164124 4250462 4328248 8500924 13598723 17001848 27197446 53417323 54394892 106834646 108789784 145160441 213669292 290320882 427338584 580641764 1161283528 1210286347 2420572694 4754141747 4841145388 9508283494 9682290776 12919279249 19016566988 25838558498 38033133976 51677116996 103354233992 324723906517 649447813034 1298895626068 2597791252136 28900427680013 57800855360026 115601710720052 231203421440104