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12980027 = 172389373
BaseRepresentation
bin110001100000…
…111100111011
3220102110020202
4301200330323
511310330102
61142112415
7215220434
oct61407473
926373222
1012980027
1173660a5
12441b70b
1328c60b8
141a1c48b
151215e02
hexc60f3b

12980027 has 16 divisors (see below), whose sum is σ = 14541120. Its totient is φ = 11523072.

The previous prime is 12979987. The next prime is 12980029. The reversal of 12980027 is 72008921.

It is a happy number.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-12980027 is a prime.

It is a super-2 number, since 2×129800272 = 336962201841458, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12980029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34613 + ... + 34985.

It is an arithmetic number, because the mean of its divisors is an integer number (908820).

Almost surely, 212980027 is an apocalyptic number.

12980027 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

12980027 is a deficient number, since it is larger than the sum of its proper divisors (1561093).

12980027 is a wasteful number, since it uses less digits than its factorization.

12980027 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 502.

The product of its (nonzero) digits is 2016, while the sum is 29.

The square root of 12980027 is about 3602.7804540382. The cubic root of 12980027 is about 235.0129885684.

Adding to 12980027 its reverse (72008921), we get a palindrome (84988948).

The spelling of 12980027 in words is "twelve million, nine hundred eighty thousand, twenty-seven".

Divisors: 1 17 23 89 373 391 1513 2047 6341 8579 33197 34799 145843 564349 763531 12980027