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118207474931 = 7131968367539
BaseRepresentation
bin110111000010110110…
…1101110110011110011
3102022010002012220101002
41232011231232303303
53414042103144211
6130145340232215
711353201646540
oct1560555566363
9368102186332
10118207474931
114614a046547
121aaab53b66b
13b1baa13750
145a15257bc7
15311c92703b
hex1b85b6ecf3

118207474931 has 16 divisors (see below), whose sum is σ = 153143289600. Its totient is φ = 88604329248.

The previous prime is 118207474927. The next prime is 118207474997. The reversal of 118207474931 is 139474702811.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 118207474931 - 22 = 118207474927 is a prime.

It is a super-2 number, since 2×1182074749312 (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (118207474901) 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 15 ways as a sum of consecutive naturals, for example, 34182041 + ... + 34185498.

It is an arithmetic number, because the mean of its divisors is an integer number (9571455600).

Almost surely, 2118207474931 is an apocalyptic number.

118207474931 is a deficient number, since it is larger than the sum of its proper divisors (34935814669).

118207474931 is a wasteful number, since it uses less digits than its factorization.

118207474931 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68367578.

The product of its (nonzero) digits is 338688, while the sum is 47.

The spelling of 118207474931 in words is "one hundred eighteen billion, two hundred seven million, four hundred seventy-four thousand, nine hundred thirty-one".

Divisors: 1 7 13 19 91 133 247 1729 68367539 478572773 888778007 1298983241 6221446049 9092882687 16886782133 118207474931