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252223504 = 24131212613
BaseRepresentation
bin11110000100010…
…10000000010000
3122120121021121021
433002022000100
51004032123004
641010005224
76151602331
oct1702120020
9576537537
10252223504
1111a412285
1270576814
13403407a0
14256d8288
1517222d54
hexf08a010

252223504 has 20 divisors (see below), whose sum is σ = 526274476. Its totient is φ = 116410752.

The previous prime is 252223459. The next prime is 252223507. The reversal of 252223504 is 405322252.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 51151104 + 201072400 = 7152^2 + 14180^2 .

It is not an unprimeable number, because it can be changed into a prime (252223507) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 606099 + ... + 606514.

Almost surely, 2252223504 is an apocalyptic number.

It is an amenable number.

252223504 is an abundant number, since it is smaller than the sum of its proper divisors (274050972).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

252223504 is a wasteful number, since it uses less digits than its factorization.

252223504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1212634 (or 1212628 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 25.

The square root of 252223504 is about 15881.5460204604. The cubic root of 252223504 is about 631.8226415747.

Adding to 252223504 its reverse (405322252), we get a palindrome (657545756).

The spelling of 252223504 in words is "two hundred fifty-two million, two hundred twenty-three thousand, five hundred four".

Divisors: 1 2 4 8 13 16 26 52 104 208 1212613 2425226 4850452 9700904 15763969 19401808 31527938 63055876 126111752 252223504