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12976142 = 26488071
BaseRepresentation
bin110001100000…
…000000001110
3220102020220212
4301200000032
511310214032
61142042422
7215203214
oct61400016
926366825
1012976142
117363193
124419412
1328c43ba
141a1acb4
151214bb2
hexc6000e

12976142 has 4 divisors (see below), whose sum is σ = 19464216. Its totient is φ = 6488070.

The previous prime is 12976141. The next prime is 12976181. The reversal of 12976142 is 24167921.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 24167921 = 202711923.

It is a super-2 number, since 2×129761422 = 336760522408328, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12976099 and 12976108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12976141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3244034 + ... + 3244037.

It is an arithmetic number, because the mean of its divisors is an integer number (4866054).

Almost surely, 212976142 is an apocalyptic number.

12976142 is a deficient number, since it is larger than the sum of its proper divisors (6488074).

12976142 is an equidigital number, since it uses as much as digits as its factorization.

12976142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6488073.

The product of its digits is 6048, while the sum is 32.

The square root of 12976142 is about 3602.2412467796. The cubic root of 12976142 is about 234.9895392959.

The spelling of 12976142 in words is "twelve million, nine hundred seventy-six thousand, one hundred forty-two".

Divisors: 1 2 6488071 12976142