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660053013 = 31791229149
BaseRepresentation
bin100111010101111…
…001110000010101
31201000000011111220
4213111321300111
52322433144023
6145255120553
722233233544
oct4725716025
91630004456
10660053013
11309645664
12165073159
13a6993a19
146393a15b
153ce313e3
hex27579c15

660053013 has 8 divisors (see below), whose sum is σ = 884988000. Its totient is φ = 437576688.

The previous prime is 660052997. The next prime is 660053029. The reversal of 660053013 is 310350066.

It is an interprime number because it is at equal distance from previous prime (660052997) and next prime (660053029).

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

It is not a de Polignac number, because 660053013 - 24 = 660052997 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (660053213) 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, 614038 + ... + 615111.

It is an arithmetic number, because the mean of its divisors is an integer number (110623500).

Almost surely, 2660053013 is an apocalyptic number.

It is an amenable number.

660053013 is a deficient number, since it is larger than the sum of its proper divisors (224934987).

660053013 is a wasteful number, since it uses less digits than its factorization.

660053013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1229331.

The product of its (nonzero) digits is 1620, while the sum is 24.

The square root of 660053013 is about 25691.4969007257. The cubic root of 660053013 is about 870.6820797222.

The spelling of 660053013 in words is "six hundred sixty million, fifty-three thousand, thirteen".

Divisors: 1 3 179 537 1229149 3687447 220017671 660053013