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12998862 = 232722159
BaseRepresentation
bin110001100101…
…100011001110
3220110102002100
4301211203032
511311430422
61142335530
7215326362
oct61454316
926412070
1012998862
117379268
12442a5a6
132901846
141a252a2
15121b7ac
hexc658ce

12998862 has 12 divisors (see below), whose sum is σ = 28164240. Its totient is φ = 4332948.

The previous prime is 12998861. The next prime is 12998903. The reversal of 12998862 is 26889921.

12998862 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12998861) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 361062 + ... + 361097.

It is an arithmetic number, because the mean of its divisors is an integer number (2347020).

Almost surely, 212998862 is an apocalyptic number.

12998862 is an abundant number, since it is smaller than the sum of its proper divisors (15165378).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12998862 is a wasteful number, since it uses less digits than its factorization.

12998862 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 722167 (or 722164 counting only the distinct ones).

The product of its digits is 124416, while the sum is 45.

The square root of 12998862 is about 3605.3934598044. The cubic root of 12998862 is about 235.1266074978.

The spelling of 12998862 in words is "twelve million, nine hundred ninety-eight thousand, eight hundred sixty-two".

Divisors: 1 2 3 6 9 18 722159 1444318 2166477 4332954 6499431 12998862