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122070057 = 340690019
BaseRepresentation
bin1110100011010…
…10010000101001
322111200210122020
413101222100221
5222222220212
620040215053
73011402244
oct721522051
9274623566
10122070057
11629a604a
1234a6a489
131c3a0205
14122d825b
15aab3d8c
hex746a429

122070057 has 4 divisors (see below), whose sum is σ = 162760080. Its totient is φ = 81380036.

The previous prime is 122070031. The next prime is 122070059. The reversal of 122070057 is 750070221.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 750070221 = 3250023407.

It is a cyclic number.

It is not a de Polignac number, because 122070057 - 27 = 122069929 is a prime.

It is not an unprimeable number, because it can be changed into a prime (122070059) 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, 20345007 + ... + 20345012.

It is an arithmetic number, because the mean of its divisors is an integer number (40690020).

Almost surely, 2122070057 is an apocalyptic number.

It is an amenable number.

122070057 is a deficient number, since it is larger than the sum of its proper divisors (40690023).

122070057 is an equidigital number, since it uses as much as digits as its factorization.

122070057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40690022.

The product of its (nonzero) digits is 980, while the sum is 24.

The square root of 122070057 is about 11048.5318934237. The cubic root of 122070057 is about 496.0624826441.

The spelling of 122070057 in words is "one hundred twenty-two million, seventy thousand, fifty-seven".

Divisors: 1 3 40690019 122070057