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12307091 = 47401653
BaseRepresentation
bin101110111100…
…101010010011
3212011021011012
4232330222103
511122311331
61115441135
7206415506
oct56745223
925137135
1012307091
116a46555
1241561ab
13271ba04
1418c513d
15113182b
hexbbca93

12307091 has 8 divisors (see below), whose sum is σ = 12619584. Its totient is φ = 11996800.

The previous prime is 12307067. The next prime is 12307109. The reversal of 12307091 is 19070321.

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 12307091 - 26 = 12307027 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12307021) 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, 18521 + ... + 19173.

It is an arithmetic number, because the mean of its divisors is an integer number (1577448).

Almost surely, 212307091 is an apocalyptic number.

12307091 is a deficient number, since it is larger than the sum of its proper divisors (312493).

12307091 is an equidigital number, since it uses as much as digits as its factorization.

12307091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1101.

The product of its (nonzero) digits is 378, while the sum is 23.

The square root of 12307091 is about 3508.1463766496. The cubic root of 12307091 is about 230.8793745636.

The spelling of 12307091 in words is "twelve million, three hundred seven thousand, ninety-one".

Divisors: 1 47 401 653 18847 30691 261853 12307091