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512027139 = 31313128901
BaseRepresentation
bin11110100001001…
…110101000000011
31022200110200012010
4132201032220003
52022034332024
6122450304003
715455105331
oct3641165003
91280420163
10512027139
11243031628
12123588003
1382106550
144c006b51
152ee41b29
hex1e84ea03

512027139 has 8 divisors (see below), whose sum is σ = 735218512. Its totient is φ = 315093600.

The previous prime is 512027123. The next prime is 512027167. The reversal of 512027139 is 931720215.

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

It is not a de Polignac number, because 512027139 - 24 = 512027123 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (512027179) 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 7 ways as a sum of consecutive naturals, for example, 6564412 + ... + 6564489.

It is an arithmetic number, because the mean of its divisors is an integer number (91902314).

Almost surely, 2512027139 is an apocalyptic number.

512027139 is a deficient number, since it is larger than the sum of its proper divisors (223191373).

512027139 is a wasteful number, since it uses less digits than its factorization.

512027139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13128917.

The product of its (nonzero) digits is 3780, while the sum is 30.

The square root of 512027139 is about 22628.0166828646. The cubic root of 512027139 is about 800.0141346461.

The spelling of 512027139 in words is "five hundred twelve million, twenty-seven thousand, one hundred thirty-nine".

Divisors: 1 3 13 39 13128901 39386703 170675713 512027139