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213468307964 = 22173139239823
BaseRepresentation
bin1100011011001110110…
…0111110000111111100
3202101222222021121201022
43012303230332013330
511444140341323324
6242022130403312
721264641451662
oct3066354760774
9671888247638
10213468307964
118259332732a
1235456130538
131718c72aa82
14a490b12c32
155845a7e05e
hex31b3b3e1fc

213468307964 has 12 divisors (see below), whose sum is σ = 395544217824. Its totient is φ = 100455674304.

The previous prime is 213468307961. The next prime is 213468307993. The reversal of 213468307964 is 469703864312.

It is a hoax number, since the sum of its digits (53) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213468307961) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1569619844 + ... + 1569619979.

It is an arithmetic number, because the mean of its divisors is an integer number (32962018152).

Almost surely, 2213468307964 is an apocalyptic number.

It is an amenable number.

213468307964 is a deficient number, since it is larger than the sum of its proper divisors (182075909860).

213468307964 is a wasteful number, since it uses less digits than its factorization.

213468307964 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3139239844 (or 3139239842 counting only the distinct ones).

The product of its (nonzero) digits is 5225472, while the sum is 53.

The spelling of 213468307964 in words is "two hundred thirteen billion, four hundred sixty-eight million, three hundred seven thousand, nine hundred sixty-four".

Divisors: 1 2 4 17 34 68 3139239823 6278479646 12556959292 53367076991 106734153982 213468307964