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118812168317 = 990112000017
BaseRepresentation
bin110111010100111000…
…0011101000001111101
3102100200020001111202102
41232221300131001331
53421311403341232
6130325341034445
711404163524163
oct1565160350175
9370606044672
10118812168317
114642a40a647
121b039b55a25
13b28609369b
145a716a3233
153155a70662
hex1ba9c1d07d

118812168317 has 4 divisors (see below), whose sum is σ = 118824178236. Its totient is φ = 118800158400.

The previous prime is 118812168269. The next prime is 118812168413. The reversal of 118812168317 is 713861218811.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 70929538276 + 47882630041 = 266326^2 + 218821^2 .

It is a cyclic number.

It is not a de Polignac number, because 118812168317 - 26 = 118812168253 is a prime.

It is a super-2 number, since 2×1188121683172 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (118812138317) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5990108 + ... + 6009909.

It is an arithmetic number, because the mean of its divisors is an integer number (29706044559).

Almost surely, 2118812168317 is an apocalyptic number.

It is an amenable number.

118812168317 is a deficient number, since it is larger than the sum of its proper divisors (12009919).

118812168317 is an equidigital number, since it uses as much as digits as its factorization.

118812168317 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12009918.

The product of its digits is 129024, while the sum is 47.

The spelling of 118812168317 in words is "one hundred eighteen billion, eight hundred twelve million, one hundred sixty-eight thousand, three hundred seventeen".

Divisors: 1 9901 12000017 118812168317