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12946955 = 57369913
BaseRepresentation
bin110001011000…
…111000001011
3220100202212212
4301120320023
511303300310
61141255335
7215022140
oct61307013
926322785
1012946955
11734326a
12440454b
1328b4028
141a103c7
15120b205
hexc58e0b

12946955 has 8 divisors (see below), whose sum is σ = 17755872. Its totient is φ = 8877888.

The previous prime is 12946951. The next prime is 12946987. The reversal of 12946955 is 55964921.

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

It is a cyclic number.

It is not a de Polignac number, because 12946955 - 22 = 12946951 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12946951) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 184922 + ... + 184991.

It is an arithmetic number, because the mean of its divisors is an integer number (2219484).

Almost surely, 212946955 is an apocalyptic number.

12946955 is a deficient number, since it is larger than the sum of its proper divisors (4808917).

12946955 is an equidigital number, since it uses as much as digits as its factorization.

12946955 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 369925.

The product of its digits is 97200, while the sum is 41.

The square root of 12946955 is about 3598.1877382927. The cubic root of 12946955 is about 234.8132211356.

The spelling of 12946955 in words is "twelve million, nine hundred forty-six thousand, nine hundred fifty-five".

Divisors: 1 5 7 35 369913 1849565 2589391 12946955