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252251123 = 318137133
BaseRepresentation
bin11110000100100…
…00101111110011
3122120122200111012
433002100233303
51004034013443
641010341135
76152046005
oct1702205763
9576580435
10252251123
1111a431003
127058a7ab
1340350227
1425704375
151722b118
hexf090bf3

252251123 has 4 divisors (see below), whose sum is σ = 260388288. Its totient is φ = 244113960.

The previous prime is 252251107. The next prime is 252251141. The reversal of 252251123 is 321152252.

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

It is a cyclic number.

It is not a de Polignac number, because 252251123 - 24 = 252251107 is a prime.

It is a super-2 number, since 2×2522511232 = 127261258109522258, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (252251173) 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, 4068536 + ... + 4068597.

It is an arithmetic number, because the mean of its divisors is an integer number (65097072).

Almost surely, 2252251123 is an apocalyptic number.

252251123 is a deficient number, since it is larger than the sum of its proper divisors (8137165).

252251123 is an equidigital number, since it uses as much as digits as its factorization.

252251123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8137164.

The product of its digits is 1200, while the sum is 23.

The square root of 252251123 is about 15882.4155278723. The cubic root of 252251123 is about 631.8457026988.

The spelling of 252251123 in words is "two hundred fifty-two million, two hundred fifty-one thousand, one hundred twenty-three".

Divisors: 1 31 8137133 252251123