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12977054 = 26488527
BaseRepresentation
bin110001100000…
…001110011110
3220102022011122
4301200032132
511310231204
61142050542
7215205656
oct61401636
926368148
1012977054
117363942
124419a52
1328c493c
141a1b366
1512150be
hexc6039e

12977054 has 4 divisors (see below), whose sum is σ = 19465584. Its totient is φ = 6488526.

The previous prime is 12977023. The next prime is 12977059. The reversal of 12977054 is 45077921.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 45077921 = 76439703.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12977059) 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 as a sum of consecutive naturals, namely, 3244262 + ... + 3244265.

It is an arithmetic number, because the mean of its divisors is an integer number (4866396).

Almost surely, 212977054 is an apocalyptic number.

12977054 is a deficient number, since it is larger than the sum of its proper divisors (6488530).

12977054 is an equidigital number, since it uses as much as digits as its factorization.

12977054 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6488529.

The product of its (nonzero) digits is 17640, while the sum is 35.

The square root of 12977054 is about 3602.3678324125. The cubic root of 12977054 is about 234.9950444104.

The spelling of 12977054 in words is "twelve million, nine hundred seventy-seven thousand, fifty-four".

Divisors: 1 2 6488527 12977054