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213102120031304 = 23718947200844197
BaseRepresentation
bin110000011101000010110100…
…001010100101010001001000
31000221112100211010222200022112
4300131002310022211101020
5210412431120212000204
62033121432404441452
762613056123121050
oct6035026412452110
91027470733880275
10213102120031304
11619a0113219029
121ba987509a9288
1391ba59ca3930a
143a8a2aa48c560
15199841db3326e
hexc1d0b42a5448

213102120031304 has 32 divisors (see below), whose sum is σ = 456671503644480. Its totient is φ = 91324659297984.

The previous prime is 213102120031291. The next prime is 213102120031319. The reversal of 213102120031304 is 403130021201312.

It is a self number, because there is not a number n which added to its sum of digits gives 213102120031304.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 99361067 + ... + 101483130.

It is an arithmetic number, because the mean of its divisors is an integer number (14270984488890).

Almost surely, 2213102120031304 is an apocalyptic number.

It is an amenable number.

213102120031304 is an abundant number, since it is smaller than the sum of its proper divisors (243569383613176).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

213102120031304 is a wasteful number, since it uses less digits than its factorization.

213102120031304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 200863157 (or 200863153 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 213102120031304 its reverse (403130021201312), we get a palindrome (616232141232616).

The spelling of 213102120031304 in words is "two hundred thirteen trillion, one hundred two billion, one hundred twenty million, thirty-one thousand, three hundred four".

Divisors: 1 2 4 7 8 14 28 56 18947 37894 75788 132629 151576 265258 530516 1061032 200844197 401688394 803376788 1405909379 1606753576 2811818758 5623637516 11247275032 3805395000559 7610790001118 15221580002236 26637765003913 30443160004472 53275530007826 106551060015652 213102120031304