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122112876157 = 294210788833
BaseRepresentation
bin111000110111001111…
…1101001111001111101
3102200012020220211200221
41301232133221321331
54000041344014112
6132033050421341
711552033215126
oct1615637517175
9380166824627
10122112876157
1147873598268
121b7bb431851
13b690b62c4c
145ca5bc504d
15329a712e07
hex1c6e7e9e7d

122112876157 has 4 divisors (see below), whose sum is σ = 126323665020. Its totient is φ = 117902087296.

The previous prime is 122112876133. The next prime is 122112876167. The reversal of 122112876157 is 751678211221.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 751678211221 = 7107382601603.

It can be written as a sum of positive squares in 2 ways, for example, as 55799415961 + 66313460196 = 236219^2 + 257514^2 .

It is a cyclic number.

It is not a de Polignac number, because 122112876157 - 231 = 119965392509 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122112876107) 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, 2105394388 + ... + 2105394445.

It is an arithmetic number, because the mean of its divisors is an integer number (31580916255).

Almost surely, 2122112876157 is an apocalyptic number.

It is an amenable number.

122112876157 is a deficient number, since it is larger than the sum of its proper divisors (4210788863).

122112876157 is an equidigital number, since it uses as much as digits as its factorization.

122112876157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4210788862.

The product of its digits is 94080, while the sum is 43.

The spelling of 122112876157 in words is "one hundred twenty-two billion, one hundred twelve million, eight hundred seventy-six thousand, one hundred fifty-seven".

Divisors: 1 29 4210788833 122112876157