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12974565 = 357910949
BaseRepresentation
bin110001011111…
…100111100101
3220102011202110
4301133213211
511310141230
61142031233
7215165502
oct61374745
926364673
1012974565
117361a8a
124418519
1328c3776
141a1a4a9
1512144b0
hexc5f9e5

12974565 has 16 divisors (see below), whose sum is σ = 21024000. Its totient is φ = 6831552.

The previous prime is 12974543. The next prime is 12974567. The reversal of 12974565 is 56547921.

12974565 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12974565 - 26 = 12974501 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12974567) 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, 4290 + ... + 6659.

It is an arithmetic number, because the mean of its divisors is an integer number (1314000).

Almost surely, 212974565 is an apocalyptic number.

12974565 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12974565 is a deficient number, since it is larger than the sum of its proper divisors (8049435).

12974565 is a wasteful number, since it uses less digits than its factorization.

12974565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11036.

The product of its digits is 75600, while the sum is 39.

The square root of 12974565 is about 3602.0223486258. The cubic root of 12974565 is about 234.9800194269.

The spelling of 12974565 in words is "twelve million, nine hundred seventy-four thousand, five hundred sixty-five".

Divisors: 1 3 5 15 79 237 395 1185 10949 32847 54745 164235 864971 2594913 4324855 12974565