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31102406324 = 22111393150741
BaseRepresentation
bin11100111101110110…
…010000111010110100
32222021120122221112222
4130331312100322310
51002144204000244
622142132301512
72150514043313
oct347566207264
988246587488
1031102406324
1112210552240
126040171898
132c188a9132
141710a1227a
15c207d7bee
hex73dd90eb4

31102406324 has 24 divisors (see below), whose sum is σ = 59382753696. Its totient is φ = 14136164000.

The previous prime is 31102406303. The next prime is 31102406327. The reversal of 31102406324 is 42360420113.

It is a junction number, because it is equal to n+sod(n) for n = 31102406293 and 31102406302.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31102406327) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 587594 + ... + 638334.

It is an arithmetic number, because the mean of its divisors is an integer number (2474281404).

Almost surely, 231102406324 is an apocalyptic number.

It is an amenable number.

31102406324 is a deficient number, since it is larger than the sum of its proper divisors (28280347372).

31102406324 is a wasteful number, since it uses less digits than its factorization.

31102406324 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64687 (or 64685 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 26.

Adding to 31102406324 its reverse (42360420113), we get a palindrome (73462826437).

The spelling of 31102406324 in words is "thirty-one billion, one hundred two million, four hundred six thousand, three hundred twenty-four".

Divisors: 1 2 4 11 22 44 13931 27862 50741 55724 101482 153241 202964 306482 558151 612964 1116302 2232604 706872871 1413745742 2827491484 7775601581 15551203162 31102406324