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252112151 = 503501217
BaseRepresentation
bin11110000011011…
…10110100010111
3122120101121212002
433001232310113
51004020042101
641003345515
76150626564
oct1701566427
9576347762
10252112151
1111a346655
127052229b
1340301bb5
14256a986b
15171eed6b
hexf06ed17

252112151 has 4 divisors (see below), whose sum is σ = 252613872. Its totient is φ = 251610432.

The previous prime is 252112127. The next prime is 252112163. The reversal of 252112151 is 151211252.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-252112151 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 (252142151) 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, 250106 + ... + 251111.

It is an arithmetic number, because the mean of its divisors is an integer number (63153468).

Almost surely, 2252112151 is an apocalyptic number.

252112151 is a deficient number, since it is larger than the sum of its proper divisors (501721).

252112151 is an equidigital number, since it uses as much as digits as its factorization.

252112151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 501720.

The product of its digits is 200, while the sum is 20.

The square root of 252112151 is about 15878.0398979219. The cubic root of 252112151 is about 631.7296477264.

The spelling of 252112151 in words is "two hundred fifty-two million, one hundred twelve thousand, one hundred fifty-one".

Divisors: 1 503 501217 252112151