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31054131116 = 22131122948221
BaseRepresentation
bin11100111010111110…
…000110111110101100
32222011012211022102022
4130322332012332230
51002044324143431
622133245445312
72146356521261
oct347276067654
988135738368
1031054131116
111219627a378
126027b70838
132c0b8a5b18
141708447268
15c1b44e07b
hex73af86fac

31054131116 has 24 divisors (see below), whose sum is σ = 54805267440. Its totient is φ = 15395681600.

The previous prime is 31054131091. The next prime is 31054131133. The reversal of 31054131116 is 61113145013.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 619886 + ... + 668106.

It is an arithmetic number, because the mean of its divisors is an integer number (2283552810).

Almost surely, 231054131116 is an apocalyptic number.

It is an amenable number.

31054131116 is a deficient number, since it is larger than the sum of its proper divisors (23751136324).

31054131116 is a wasteful number, since it uses less digits than its factorization.

31054131116 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49585 (or 49583 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 26.

Adding to 31054131116 its reverse (61113145013), we get a palindrome (92167276129).

The spelling of 31054131116 in words is "thirty-one billion, fifty-four million, one hundred thirty-one thousand, one hundred sixteen".

Divisors: 1 2 4 131 262 524 1229 2458 4916 48221 96442 160999 192884 321998 643996 6316951 12633902 25267804 59263609 118527218 237054436 7763532779 15527065558 31054131116