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12630515 = 52987107
BaseRepresentation
bin110000001011…
…100111110011
3212202200210212
4300023213303
511213134030
61130414335
7212233442
oct60134763
925680725
1012630515
117147547
1242913ab
132802ca1
14196ad59
151197595
hexc0b9f3

12630515 has 8 divisors (see below), whose sum is σ = 15679440. Its totient is φ = 9755872.

The previous prime is 12630511. The next prime is 12630517. The reversal of 12630515 is 51503621.

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 12630515 - 22 = 12630511 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12630511) 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, 43409 + ... + 43698.

It is an arithmetic number, because the mean of its divisors is an integer number (1959930).

Almost surely, 212630515 is an apocalyptic number.

12630515 is a deficient number, since it is larger than the sum of its proper divisors (3048925).

12630515 is an equidigital number, since it uses as much as digits as its factorization.

12630515 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87141.

The product of its (nonzero) digits is 900, while the sum is 23.

The square root of 12630515 is about 3553.9435842455. The cubic root of 12630515 is about 232.8843759428.

The spelling of 12630515 in words is "twelve million, six hundred thirty thousand, five hundred fifteen".

Divisors: 1 5 29 145 87107 435535 2526103 12630515