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12797427 = 38634943
BaseRepresentation
bin110000110100…
…010111110011
3220002011202210
4300310113303
511234004202
61134143203
7213530166
oct60642763
926064683
1012797427
117250995
124351b03
132860c56
1419b1add
1511cbc6c
hexc345f3

12797427 has 8 divisors (see below), whose sum is σ = 17086464. Its totient is φ = 8520008.

The previous prime is 12797423. The next prime is 12797437. The reversal of 12797427 is 72479721.

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 12797427 - 22 = 12797423 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12797423) 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 7 ways as a sum of consecutive naturals, for example, 118 + ... + 5060.

It is an arithmetic number, because the mean of its divisors is an integer number (2135808).

Almost surely, 212797427 is an apocalyptic number.

12797427 is a deficient number, since it is larger than the sum of its proper divisors (4289037).

12797427 is an equidigital number, since it uses as much as digits as its factorization.

12797427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5809.

The product of its digits is 49392, while the sum is 39.

The square root of 12797427 is about 3577.3491582455. The cubic root of 12797427 is about 233.9057440533.

The spelling of 12797427 in words is "twelve million, seven hundred ninety-seven thousand, four hundred twenty-seven".

Divisors: 1 3 863 2589 4943 14829 4265809 12797427