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12970756 = 223242689
BaseRepresentation
bin110001011110…
…101100000100
3220101222112101
4301132230010
511310031011
61142001444
7215151421
oct61365404
926358471
1012970756
11735a137
124416284
1328c1b06
141a18d48
1512132c1
hexc5eb04

12970756 has 6 divisors (see below), whose sum is σ = 22698830. Its totient is φ = 6485376.

The previous prime is 12970753. The next prime is 12970759. The reversal of 12970756 is 65707921.

It is an interprime number because it is at equal distance from previous prime (12970753) and next prime (12970759).

It can be written as a sum of positive squares in only one way, i.e., 11492100 + 1478656 = 3390^2 + 1216^2 .

It is a super-2 number, since 2×129707562 = 336481022423072, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12970751) 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, 1621341 + ... + 1621348.

Almost surely, 212970756 is an apocalyptic number.

It is an amenable number.

12970756 is a deficient number, since it is larger than the sum of its proper divisors (9728074).

12970756 is a wasteful number, since it uses less digits than its factorization.

12970756 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3242693 (or 3242691 counting only the distinct ones).

The product of its (nonzero) digits is 26460, while the sum is 37.

The square root of 12970756 is about 3601.4935790586. The cubic root of 12970756 is about 234.9570224711.

The spelling of 12970756 in words is "twelve million, nine hundred seventy thousand, seven hundred fifty-six".

Divisors: 1 2 4 3242689 6485378 12970756