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31113300023 = 1321726341177
BaseRepresentation
bin11100111110011111…
…110100100000110111
32222022100011101220022
4130332133310200313
51002210001100043
622143201555355
72151005454341
oct347637644067
988270141808
1031113300023
11122167128a3
126043945b5b
132c1ac21700
14171224a291
15c2173a868
hex73e7f4837

31113300023 has 24 divisors (see below), whose sum is σ = 35809047648. Its totient is φ = 26927127552.

The previous prime is 31113300007. The next prime is 31113300079. The reversal of 31113300023 is 32000331113.

It is not a de Polignac number, because 31113300023 - 24 = 31113300007 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 31113299974 and 31113300010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31113302023) 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, 735011 + ... + 776187.

It is an arithmetic number, because the mean of its divisors is an integer number (1492043652).

Almost surely, 231113300023 is an apocalyptic number.

31113300023 is a deficient number, since it is larger than the sum of its proper divisors (4695747625).

31113300023 is a wasteful number, since it uses less digits than its factorization.

31113300023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41483 (or 41470 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 17.

Adding to 31113300023 its reverse (32000331113), we get a palindrome (63113631136).

The spelling of 31113300023 in words is "thirty-one billion, one hundred thirteen million, three hundred thousand, twenty-three".

Divisors: 1 13 17 169 221 263 2873 3419 4471 41177 44447 58123 535301 700009 755599 6958913 9100117 10829551 118301521 140784163 184102367 1830194119 2393330771 31113300023