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12703897 = 83153059
BaseRepresentation
bin110000011101…
…100010011001
3212220102110201
4300131202121
511223011042
61132142201
7212660413
oct60354231
925812421
1012703897
117197698
124307961
13282a4cb
1419899b3
1511ae1b7
hexc1d899

12703897 has 4 divisors (see below), whose sum is σ = 12857040. Its totient is φ = 12550756.

The previous prime is 12703883. The next prime is 12703907. The reversal of 12703897 is 79830721.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 12703897 - 211 = 12701849 is a prime.

It is a super-2 number, since 2×127038972 = 322777997973218, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12703807) 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 in 3 ways as a sum of consecutive naturals, for example, 76447 + ... + 76612.

It is an arithmetic number, because the mean of its divisors is an integer number (3214260).

Almost surely, 212703897 is an apocalyptic number.

It is an amenable number.

12703897 is a deficient number, since it is larger than the sum of its proper divisors (153143).

12703897 is an equidigital number, since it uses as much as digits as its factorization.

12703897 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 153142.

The product of its (nonzero) digits is 21168, while the sum is 37.

The square root of 12703897 is about 3564.2526565888. The cubic root of 12703897 is about 233.3345167740.

The spelling of 12703897 in words is "twelve million, seven hundred three thousand, eight hundred ninety-seven".

Divisors: 1 83 153059 12703897