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12975969 = 373193307
BaseRepresentation
bin110001011111…
…111101100001
3220102020200110
4301133331201
511310212334
61142041533
7215202546
oct61377541
926366613
1012975969
117363046
1244192a9
1328c42b6
141a1abcd
151214ae9
hexc5ff61

12975969 has 16 divisors (see below), whose sum is σ = 17686592. Its totient is φ = 8460288.

The previous prime is 12975961. The next prime is 12975983. The reversal of 12975969 is 96957921.

It is not a de Polignac number, because 12975969 - 23 = 12975961 is a prime.

It is a super-2 number, since 2×129759692 = 336751542977922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12975961) 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, 42114 + ... + 42420.

It is an arithmetic number, because the mean of its divisors is an integer number (1105412).

Almost surely, 212975969 is an apocalyptic number.

It is an amenable number.

12975969 is a deficient number, since it is larger than the sum of its proper divisors (4710623).

12975969 is a wasteful number, since it uses less digits than its factorization.

12975969 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 576.

The product of its digits is 306180, while the sum is 48.

The square root of 12975969 is about 3602.2172338714. The cubic root of 12975969 is about 234.9884949853.

The spelling of 12975969 in words is "twelve million, nine hundred seventy-five thousand, nine hundred sixty-nine".

Divisors: 1 3 73 193 219 307 579 921 14089 22411 42267 59251 67233 177753 4325323 12975969