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12608869 = 713138559
BaseRepresentation
bin110000000110…
…010101100101
3212201121010011
4300012111211
511211440434
61130130221
7212113360
oct60062545
925647104
1012608869
117132259
124280971
1327c6190
1419630d7
151190e64
hexc06565

12608869 has 8 divisors (see below), whose sum is σ = 15518720. Its totient is φ = 9976176.

The previous prime is 12608867. The next prime is 12608891. The reversal of 12608869 is 96880621.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12608869 - 21 = 12608867 is a prime.

It is a super-2 number, since 2×126088692 = 317967154918322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12608867) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 69189 + ... + 69370.

It is an arithmetic number, because the mean of its divisors is an integer number (1939840).

Almost surely, 212608869 is an apocalyptic number.

It is an amenable number.

12608869 is a deficient number, since it is larger than the sum of its proper divisors (2909851).

12608869 is a wasteful number, since it uses less digits than its factorization.

12608869 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138579.

The product of its (nonzero) digits is 41472, while the sum is 40.

The square root of 12608869 is about 3550.8969289463. The cubic root of 12608869 is about 232.7512618750.

The spelling of 12608869 in words is "twelve million, six hundred eight thousand, eight hundred sixty-nine".

Divisors: 1 7 13 91 138559 969913 1801267 12608869