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252521301 = 32313612689
BaseRepresentation
bin11110000110100…
…10101101010101
3122121011102002210
433003102231111
51004121140201
641020224033
76154252464
oct1703225525
9577142083
10252521301
1111a5a5a9a
127069b019
13404161b6
14257749db
15172811d6
hexf0d2b55

252521301 has 16 divisors (see below), whose sum is σ = 351722880. Its totient is φ = 160849920.

The previous prime is 252521293. The next prime is 252521303. The reversal of 252521301 is 103125252.

It is not a de Polignac number, because 252521301 - 23 = 252521293 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252521303) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 92565 + ... + 95253.

It is an arithmetic number, because the mean of its divisors is an integer number (21982680).

Almost surely, 2252521301 is an apocalyptic number.

It is an amenable number.

252521301 is a deficient number, since it is larger than the sum of its proper divisors (99201579).

252521301 is a wasteful number, since it uses less digits than its factorization.

252521301 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4076.

The product of its (nonzero) digits is 600, while the sum is 21.

The square root of 252521301 is about 15890.9188217674. The cubic root of 252521301 is about 632.0712053578.

Adding to 252521301 its reverse (103125252), we get a palindrome (355646553).

The spelling of 252521301 in words is "two hundred fifty-two million, five hundred twenty-one thousand, three hundred one".

Divisors: 1 3 23 69 1361 2689 4083 8067 31303 61847 93909 185541 3659729 10979187 84173767 252521301