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31011124102 = 2731293243871
BaseRepresentation
bin11100111000011010…
…000011001110000110
32222001012220022212221
4130320122003032012
51002002321432402
622125112002554
72145325130350
oct347032031606
988035808787
1031011124102
1112173a75592
12601569045a
132c029c869a
1417028500d0
15c177a6337
hex738683386

31011124102 has 32 divisors (see below), whose sum is σ = 55064346624. Its totient is φ = 12817807200.

The previous prime is 31011124013. The next prime is 31011124127. The reversal of 31011124102 is 20142111013.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5227 + ... + 249097.

It is an arithmetic number, because the mean of its divisors is an integer number (1720760832).

Almost surely, 231011124102 is an apocalyptic number.

31011124102 is a deficient number, since it is larger than the sum of its proper divisors (24053222522).

31011124102 is a wasteful number, since it uses less digits than its factorization.

31011124102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 244204.

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 31011124102 its reverse (20142111013), we get a palindrome (51153235115).

The spelling of 31011124102 in words is "thirty-one billion, eleven million, one hundred twenty-four thousand, one hundred two".

Divisors: 1 2 7 14 31 62 217 293 434 586 2051 4102 9083 18166 63581 127162 243871 487742 1707097 3414194 7560001 15120002 52920007 71454203 105840014 142908406 500179421 1000358842 2215080293 4430160586 15505562051 31011124102