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123055213 = 3133711779
BaseRepresentation
bin1110101010110…
…10110001101101
322120112212000111
413111122301231
5223000231323
620113300021
73022644361
oct725326155
9276485014
10123055213
1163509226
1235264611
131c656748
14124b32a1
15ac0ac0d
hex755ac6d

123055213 has 8 divisors (see below), whose sum is σ = 127412480. Its totient is φ = 118722240.

The previous prime is 123055201. The next prime is 123055217. The reversal of 123055213 is 312550321.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 123055213 - 217 = 122924141 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123055217) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4558 + ... + 16336.

It is an arithmetic number, because the mean of its divisors is an integer number (15926560).

Almost surely, 2123055213 is an apocalyptic number.

It is an amenable number.

123055213 is a deficient number, since it is larger than the sum of its proper divisors (4357267).

123055213 is a wasteful number, since it uses less digits than its factorization.

123055213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12147.

The product of its (nonzero) digits is 900, while the sum is 22.

The square root of 123055213 is about 11093.0254214078. The cubic root of 123055213 is about 497.3933854013.

The spelling of 123055213 in words is "one hundred twenty-three million, fifty-five thousand, two hundred thirteen".

Divisors: 1 31 337 10447 11779 365149 3969523 123055213