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252115043 = 883285521
BaseRepresentation
bin11110000011011…
…11100001100011
3122120101202211012
433001233201203
51004020140133
641003411135
76150641165
oct1701574143
9576352735
10252115043
1111a348844
1270523aab
13403032cb
14256aa935
1517200b48
hexf06f863

252115043 has 4 divisors (see below), whose sum is σ = 252401448. Its totient is φ = 251828640.

The previous prime is 252115021. The next prime is 252115051. The reversal of 252115043 is 340511252.

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 252115043 - 28 = 252114787 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (252115093) 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, 141878 + ... + 143643.

It is an arithmetic number, because the mean of its divisors is an integer number (63100362).

Almost surely, 2252115043 is an apocalyptic number.

252115043 is a deficient number, since it is larger than the sum of its proper divisors (286405).

252115043 is an equidigital number, since it uses as much as digits as its factorization.

252115043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 286404.

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

The square root of 252115043 is about 15878.1309668361. The cubic root of 252115043 is about 631.7320632588.

Adding to 252115043 its reverse (340511252), we get a palindrome (592626295).

The spelling of 252115043 in words is "two hundred fifty-two million, one hundred fifteen thousand, forty-three".

Divisors: 1 883 285521 252115043