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213479085937 = 13311831289309
BaseRepresentation
bin1100011011010001011…
…0000101011101110001
3202102000201120012022111
43012310112011131301
511444201121222222
6242023153405321
721265132201435
oct3066426053561
9672021505274
10213479085937
1182599418a47
1235459869841
1317191a32780
14a49231a9c5
1558469ac777
hex31b4585771

213479085937 has 16 divisors (see below), whose sum is σ = 237447132160. Its totient is φ = 190596110400.

The previous prime is 213479085929. The next prime is 213479085961. The reversal of 213479085937 is 739580974312.

213479085937 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 213479085937 - 23 = 213479085929 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (213479085977) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 593239 + ... + 882547.

It is an arithmetic number, because the mean of its divisors is an integer number (14840445760).

Almost surely, 2213479085937 is an apocalyptic number.

It is an amenable number.

213479085937 is a deficient number, since it is larger than the sum of its proper divisors (23968046223).

213479085937 is a wasteful number, since it uses less digits than its factorization.

213479085937 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 291184.

The product of its (nonzero) digits is 11430720, while the sum is 58.

The spelling of 213479085937 in words is "two hundred thirteen billion, four hundred seventy-nine million, eighty-five thousand, nine hundred thirty-seven".

Divisors: 1 13 31 403 1831 23803 56761 289309 737893 3761017 8968579 116591527 529724779 6886422127 16421468149 213479085937