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12974255 = 57370693
BaseRepresentation
bin110001011111…
…100010101111
3220102011022222
4301133202233
511310134010
61142025555
7215164550
oct61374257
926364288
1012974255
117361828
1244182bb
1328c3598
141a1a327
151214355
hexc5f8af

12974255 has 8 divisors (see below), whose sum is σ = 17793312. Its totient is φ = 8896608.

The previous prime is 12974251. The next prime is 12974257. The reversal of 12974255 is 55247921.

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

It is not a de Polignac number, because 12974255 - 22 = 12974251 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (35), and also a Moran number because the ratio is a prime number: 370693 = 12974255 / (1 + 2 + 9 + 7 + 4 + 2 + 5 + 5).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12974251) 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, 185312 + ... + 185381.

It is an arithmetic number, because the mean of its divisors is an integer number (2224164).

Almost surely, 212974255 is an apocalyptic number.

12974255 is a deficient number, since it is larger than the sum of its proper divisors (4819057).

12974255 is an equidigital number, since it uses as much as digits as its factorization.

12974255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 370705.

The product of its digits is 25200, while the sum is 35.

The square root of 12974255 is about 3601.9793169867. The cubic root of 12974255 is about 234.9781479606.

The spelling of 12974255 in words is "twelve million, nine hundred seventy-four thousand, two hundred fifty-five".

Divisors: 1 5 7 35 370693 1853465 2594851 12974255