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252585612 = 223243163169
BaseRepresentation
bin11110000111000…
…10011010001100
3122121021200022200
433003202122030
51004130214422
641021441500
76154641126
oct1703423214
9577250280
10252585612
1111a63a344
1270710290
1340439556
1425790216
15172952ac
hexf0e268c

252585612 has 36 divisors (see below), whose sum is σ = 653332680. Its totient is φ = 82236672.

The previous prime is 252585611. The next prime is 252585617. The reversal of 252585612 is 216585252.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

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

It is not an unprimeable number, because it can be changed into a prime (252585611) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 80037 + ... + 83132.

It is an arithmetic number, because the mean of its divisors is an integer number (18148130).

Almost surely, 2252585612 is an apocalyptic number.

It is an amenable number.

252585612 is an abundant number, since it is smaller than the sum of its proper divisors (400747068).

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

252585612 is a wasteful number, since it uses less digits than its factorization.

252585612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163222 (or 163217 counting only the distinct ones).

The product of its digits is 48000, while the sum is 36.

The square root of 252585612 is about 15892.9422071560. The cubic root of 252585612 is about 632.1248584963.

The spelling of 252585612 in words is "two hundred fifty-two million, five hundred eighty-five thousand, six hundred twelve".

Divisors: 1 2 3 4 6 9 12 18 36 43 86 129 172 258 387 516 774 1548 163169 326338 489507 652676 979014 1468521 1958028 2937042 5874084 7016267 14032534 21048801 28065068 42097602 63146403 84195204 126292806 252585612