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252522613 = 749377307
BaseRepresentation
bin11110000110100…
…11000001110101
3122121011110220101
433003103001311
51004121210423
641020234101
76154256350
oct1703230165
9577143811
10252522613
1111a5a6a82
127069b931
1340416985
1425775297
15172817ad
hexf0d3075

252522613 has 8 divisors (see below), whose sum is σ = 288695232. Its totient is φ = 216374496.

The previous prime is 252522593. The next prime is 252522629. The reversal of 252522613 is 316225252.

252522613 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-252522613 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252522643) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30906 + ... + 38212.

It is an arithmetic number, because the mean of its divisors is an integer number (36086904).

Almost surely, 2252522613 is an apocalyptic number.

It is an amenable number.

252522613 is a deficient number, since it is larger than the sum of its proper divisors (36172619).

252522613 is an equidigital number, since it uses as much as digits as its factorization.

252522613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12251.

The product of its digits is 7200, while the sum is 28.

The square root of 252522613 is about 15890.9601031530. The cubic root of 252522613 is about 632.0723000193.

Adding to 252522613 its reverse (316225252), we get a palindrome (568747865).

The spelling of 252522613 in words is "two hundred fifty-two million, five hundred twenty-two thousand, six hundred thirteen".

Divisors: 1 7 4937 7307 34559 51149 36074659 252522613