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12616387 = 72577013
BaseRepresentation
bin110000001000…
…001011000011
3212201222102121
4300020023003
511212211022
61130225111
7212144320
oct60101303
925658377
1012616387
117137973
124285197
1327c9724
141965b47
1511932c7
hexc082c3

12616387 has 8 divisors (see below), whose sum is σ = 14476896. Its totient is φ = 10770432.

The previous prime is 12616339. The next prime is 12616427. The reversal of 12616387 is 78361621.

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 12616387 - 211 = 12614339 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12616327) 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, 1708 + ... + 5305.

It is an arithmetic number, because the mean of its divisors is an integer number (1809612).

Almost surely, 212616387 is an apocalyptic number.

12616387 is a deficient number, since it is larger than the sum of its proper divisors (1860509).

12616387 is an equidigital number, since it uses as much as digits as its factorization.

12616387 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7277.

The product of its digits is 12096, while the sum is 34.

The square root of 12616387 is about 3551.9553769720. The cubic root of 12616387 is about 232.7975117627.

The spelling of 12616387 in words is "twelve million, six hundred sixteen thousand, three hundred eighty-seven".

Divisors: 1 7 257 1799 7013 49091 1802341 12616387