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252120670 = 2525212067
BaseRepresentation
bin11110000011100…
…00111001011110
3122120102001112121
433001300321132
51004020330140
641003453154
76150663454
oct1701607136
9576361477
10252120670
1111a351a9a
12705271ba
1340305a39
14256ac9d4
151720264a
hexf070e5e

252120670 has 8 divisors (see below), whose sum is σ = 453817224. Its totient is φ = 100848264.

The previous prime is 252120667. The next prime is 252120683. The reversal of 252120670 is 76021252.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12606024 + ... + 12606043.

It is an arithmetic number, because the mean of its divisors is an integer number (56727153).

Almost surely, 2252120670 is an apocalyptic number.

252120670 is a deficient number, since it is larger than the sum of its proper divisors (201696554).

252120670 is a wasteful number, since it uses less digits than its factorization.

252120670 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25212074.

The product of its (nonzero) digits is 1680, while the sum is 25.

The square root of 252120670 is about 15878.3081592467. The cubic root of 252120670 is about 631.7367631368.

The spelling of 252120670 in words is "two hundred fifty-two million, one hundred twenty thousand, six hundred seventy".

Divisors: 1 2 5 10 25212067 50424134 126060335 252120670