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31054054674 = 23431995691063
BaseRepresentation
bin11100111010111101…
…110100010100010010
32222011012200102120010
4130322331310110102
51002044314222144
622133244055350
72146356052356
oct347275642422
988135612503
1031054054674
11121962279a5
126027b34556
132c0b87a0a6
141708427466
15c1b4365b9
hex73af74512

31054054674 has 64 divisors (see below), whose sum is σ = 64044288000. Its totient is φ = 10032688512.

The previous prime is 31054054667. The next prime is 31054054687. The reversal of 31054054674 is 47645045013.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 29213067 + ... + 29214129.

It is an arithmetic number, because the mean of its divisors is an integer number (1000692000).

Almost surely, 231054054674 is an apocalyptic number.

31054054674 is an abundant number, since it is smaller than the sum of its proper divisors (32990233326).

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

31054054674 is a wasteful number, since it uses less digits than its factorization.

31054054674 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1879.

The product of its (nonzero) digits is 201600, while the sum is 39.

Adding to 31054054674 its reverse (47645045013), we get a palindrome (78699099687).

The spelling of 31054054674 in words is "thirty-one billion, fifty-four million, fifty-four thousand, six hundred seventy-four".

Divisors: 1 2 3 6 43 86 129 199 258 398 569 597 1063 1138 1194 1707 2126 3189 3414 6378 8557 17114 24467 25671 45709 48934 51342 73401 91418 113231 137127 146802 211537 226462 274254 339693 423074 604847 634611 679386 1209694 1269222 1814541 3629082 4868933 9096091 9737866 14606799 18192182 26008421 27288273 29213598 52016842 54576546 78025263 120364553 156050526 240729106 361093659 722187318 5175675779 10351351558 15527027337 31054054674