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252512155 = 577214633
BaseRepresentation
bin11110000110100…
…00011110011011
3122121010221120001
433003100132123
51004120342110
641020113431
76154214020
oct1703203633
9577127501
10252512155
1111a59a135
1270695877
1340411c9c
1425771547
151727d63a
hexf0d079b

252512155 has 8 divisors (see below), whose sum is σ = 346302432. Its totient is φ = 173151168.

The previous prime is 252512137. The next prime is 252512167. The reversal of 252512155 is 551215252.

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 252512155 - 215 = 252479387 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3607282 + ... + 3607351.

It is an arithmetic number, because the mean of its divisors is an integer number (43287804).

Almost surely, 2252512155 is an apocalyptic number.

252512155 is a deficient number, since it is larger than the sum of its proper divisors (93790277).

252512155 is an equidigital number, since it uses as much as digits as its factorization.

252512155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7214645.

The product of its digits is 5000, while the sum is 28.

The square root of 252512155 is about 15890.6310447383. The cubic root of 252512155 is about 632.0635743276.

The spelling of 252512155 in words is "two hundred fifty-two million, five hundred twelve thousand, one hundred fifty-five".

Divisors: 1 5 7 35 7214633 36073165 50502431 252512155