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12945711 = 323373503
BaseRepresentation
bin110001011000…
…100100101111
3220100201011210
4301120210233
511303230321
61141245503
7215015412
oct61304457
926321153
1012945711
117342339
124403893
1328b35ac
141a0db79
15120ab76
hexc5892f

12945711 has 16 divisors (see below), whose sum is σ = 18095616. Its totient is φ = 8216736.

The previous prime is 12945703. The next prime is 12945719. The reversal of 12945711 is 11754921.

12945711 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (12945703) and next prime (12945719).

It is not a de Polignac number, because 12945711 - 23 = 12945703 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12945719) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25486 + ... + 25988.

It is an arithmetic number, because the mean of its divisors is an integer number (1130976).

Almost surely, 212945711 is an apocalyptic number.

12945711 is a deficient number, since it is larger than the sum of its proper divisors (5149905).

12945711 is a wasteful number, since it uses less digits than its factorization.

12945711 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 902.

The product of its digits is 2520, while the sum is 30.

The square root of 12945711 is about 3598.0148693411. The cubic root of 12945711 is about 234.8057002680.

The spelling of 12945711 in words is "twelve million, nine hundred forty-five thousand, seven hundred eleven".

Divisors: 1 3 23 69 373 503 1119 1509 8579 11569 25737 34707 187619 562857 4315237 12945711