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12287247197 = 231573402727
BaseRepresentation
bin10110111000110000…
…01000001101011101
31011201022121211102112
423130120020031131
5200131013402242
65351130203405
7613326610061
oct133430101535
934638554375
1012287247197
115235915755
12246ab83565
13120a818a94
14847c31aa1
154bdab0c82
hex2dc60835d

12287247197 has 8 divisors (see below), whose sum is σ = 12903144576. Its totient is φ = 11678155632.

The previous prime is 12287247187. The next prime is 12287247221. The reversal of 12287247197 is 79174278221.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-12287247197 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12287247187) 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, 1697753 + ... + 1704974.

It is an arithmetic number, because the mean of its divisors is an integer number (1612893072).

Almost surely, 212287247197 is an apocalyptic number.

It is an amenable number.

12287247197 is a deficient number, since it is larger than the sum of its proper divisors (615897379).

12287247197 is a wasteful number, since it uses less digits than its factorization.

12287247197 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3402907.

The product of its digits is 790272, while the sum is 50.

The spelling of 12287247197 in words is "twelve billion, two hundred eighty-seven million, two hundred forty-seven thousand, one hundred ninety-seven".

Divisors: 1 23 157 3611 3402727 78262721 534228139 12287247197