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252505252 = 22711018803
BaseRepresentation
bin11110000110011…
…10110010100100
3122121010121002101
433003032302210
51004120132002
641020021444
76154154626
oct1703166244
9577117071
10252505252
1111a594a2a
1270691884
134040babc
142576cc16
151727b587
hexf0ceca4

252505252 has 24 divisors (see below), whose sum is σ = 452596032. Its totient is φ = 123228000.

The previous prime is 252505243. The next prime is 252505273.

252505252 is nontrivially palindromic in base 10.

252505252 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an alternating number because its digits alternate between even and odd.

It is a self number, because there is not a number n which added to its sum of digits gives 252505252.

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, 24283 + ... + 33085.

It is an arithmetic number, because the mean of its divisors is an integer number (18858168).

Almost surely, 2252505252 is an apocalyptic number.

It is an amenable number.

252505252 is a deficient number, since it is larger than the sum of its proper divisors (200090780).

252505252 is a wasteful number, since it uses less digits than its factorization.

252505252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8979 (or 8977 counting only the distinct ones).

The product of its (nonzero) digits is 10000, while the sum is 28.

The square root of 252505252 is about 15890.4138397966. The cubic root of 252505252 is about 632.0578146384.

Adding to 252505252 its product of nonzero digits (10000), we get a palindrome (252515252).

The spelling of 252505252 in words is "two hundred fifty-two million, five hundred five thousand, two hundred fifty-two".

Divisors: 1 2 4 71 101 142 202 284 404 7171 8803 14342 17606 28684 35212 625013 889103 1250026 1778206 2500052 3556412 63126313 126252626 252505252