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252210325 = 5210088413
BaseRepresentation
bin11110000100001…
…10110010010101
3122120120121112011
433002012302111
51004031212300
641005424221
76151516033
oct1702066225
9576517464
10252210325
1111a403394
127056b071
13403377a3
14256d3553
151721deba
hexf086c95

252210325 has 6 divisors (see below), whose sum is σ = 312740834. Its totient is φ = 201768240.

The previous prime is 252210307. The next prime is 252210337. The reversal of 252210325 is 523012252.

It can be written as a sum of positive squares in 3 ways, for example, as 18028516 + 234181809 = 4246^2 + 15303^2 .

It is not a de Polignac number, because 252210325 - 27 = 252210197 is a prime.

It is a super-2 number, since 2×2522103252 = 127220096073211250, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 252210296 and 252210305.

It is a congruent number.

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 5044182 + ... + 5044231.

Almost surely, 2252210325 is an apocalyptic number.

252210325 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

252210325 is a deficient number, since it is larger than the sum of its proper divisors (60530509).

252210325 is a wasteful number, since it uses less digits than its factorization.

252210325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10088423 (or 10088418 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 22.

The square root of 252210325 is about 15881.1310995156. The cubic root of 252210325 is about 631.8116368699.

Adding to 252210325 its reverse (523012252), we get a palindrome (775222577).

The spelling of 252210325 in words is "two hundred fifty-two million, two hundred ten thousand, three hundred twenty-five".

Divisors: 1 5 25 10088413 50442065 252210325