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252513351 = 3273384343
BaseRepresentation
bin11110000110100…
…00110001000111
3122121011000012100
433003100301013
51004120411401
641020123143
76154220346
oct1703206107
9577130170
10252513351
1111a5a0022
12706964b3
13404126ac
1425771b5d
151727db86
hexf0d0c47

252513351 has 12 divisors (see below), whose sum is σ = 369738928. Its totient is φ = 166035744.

The previous prime is 252513347. The next prime is 252513367. The reversal of 252513351 is 153315252.

It is a happy number.

252513351 is a `hidden beast` number, since 2 + 525 + 133 + 5 + 1 = 666.

It is not a de Polignac number, because 252513351 - 22 = 252513347 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 (252513341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 191515 + ... + 192828.

Almost surely, 2252513351 is an apocalyptic number.

252513351 is a deficient number, since it is larger than the sum of its proper divisors (117225577).

252513351 is a wasteful number, since it uses less digits than its factorization.

252513351 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 384422 (or 384419 counting only the distinct ones).

The product of its digits is 4500, while the sum is 27.

The square root of 252513351 is about 15890.6686769311. The cubic root of 252513351 is about 632.0645722292.

It can be divided in two parts, 2525 and 13351, that added together give a square (15876 = 1262).

The spelling of 252513351 in words is "two hundred fifty-two million, five hundred thirteen thousand, three hundred fifty-one".

Divisors: 1 3 9 73 219 657 384343 1153029 3459087 28057039 84171117 252513351