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252634231 = 2331093533
BaseRepresentation
bin11110000111011…
…10010001110111
3122121101011000101
433003232101313
51004133243411
641022454531
76155232643
oct1703562167
9577334011
10252634231
1111a672923
1270734447
1340455715
14257a3c23
15172a48c1
hexf0ee477

252634231 has 8 divisors (see below), whose sum is σ = 263777760. Its totient is φ = 241504032.

The previous prime is 252634223. The next prime is 252634253. The reversal of 252634231 is 132436252.

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 252634231 - 23 = 252634223 is a prime.

It is a super-2 number, since 2×2526342312 = 127648109345922722, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 252634231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252634201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 69741 + ... + 73273.

It is an arithmetic number, because the mean of its divisors is an integer number (32972220).

Almost surely, 2252634231 is an apocalyptic number.

252634231 is a deficient number, since it is larger than the sum of its proper divisors (11143529).

252634231 is a wasteful number, since it uses less digits than its factorization.

252634231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6665.

The product of its digits is 8640, while the sum is 28.

The square root of 252634231 is about 15894.4717118878. The cubic root of 252634231 is about 632.1654141275.

The spelling of 252634231 in words is "two hundred fifty-two million, six hundred thirty-four thousand, two hundred thirty-one".

Divisors: 1 23 3109 3533 71507 81259 10984097 252634231