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252471307 = 1199723021
BaseRepresentation
bin11110000110001…
…10100000001011
3122121001212112011
433003012200023
51004113040212
641015200351
76153653644
oct1703064013
9577055464
10252471307
1111a571480
12706760b7
13403c950a
14257606cb
15172714a7
hexf0c680b

252471307 has 8 divisors (see below), whose sum is σ = 275711472. Its totient is φ = 229279200.

The previous prime is 252471287. The next prime is 252471319. The reversal of 252471307 is 703174252.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 252471307 - 27 = 252471179 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (252471337) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 544 + ... + 22477.

It is an arithmetic number, because the mean of its divisors is an integer number (34463934).

Almost surely, 2252471307 is an apocalyptic number.

252471307 is a deficient number, since it is larger than the sum of its proper divisors (23240165).

252471307 is a wasteful number, since it uses less digits than its factorization.

252471307 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24029.

The product of its (nonzero) digits is 11760, while the sum is 31.

The square root of 252471307 is about 15889.3457071083. The cubic root of 252471307 is about 632.0294902585.

The spelling of 252471307 in words is "two hundred fifty-two million, four hundred seventy-one thousand, three hundred seven".

Divisors: 1 11 997 10967 23021 253231 22951937 252471307