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252379007 = 641393727
BaseRepresentation
bin11110000101011…
…11111101111111
3122120220011220122
433002233331333
51004102112012
641013205155
76153120566
oct1702577577
9576804818
10252379007
1111a5090a1
12706307bb
13403964ba
1425738bdd
1517253e72
hexf0aff7f

252379007 has 4 divisors (see below), whose sum is σ = 252773376. Its totient is φ = 251984640.

The previous prime is 252378989. The next prime is 252379019. The reversal of 252379007 is 700973252.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-252379007 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252379027) 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, 196223 + ... + 197504.

It is an arithmetic number, because the mean of its divisors is an integer number (63193344).

Almost surely, 2252379007 is an apocalyptic number.

252379007 is a deficient number, since it is larger than the sum of its proper divisors (394369).

252379007 is an equidigital number, since it uses as much as digits as its factorization.

252379007 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 394368.

The product of its (nonzero) digits is 26460, while the sum is 35.

The square root of 252379007 is about 15886.4409796531. The cubic root of 252379007 is about 631.9524604724.

The spelling of 252379007 in words is "two hundred fifty-two million, three hundred seventy-nine thousand, seven".

Divisors: 1 641 393727 252379007