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12692077 = 115111027
BaseRepresentation
bin110000011010…
…101001101101
3212212211020221
4300122221231
511222121302
61132011341
7212611066
oct60325155
925784227
1012692077
117189822
124300b51
132825008
14198556d
1511aa937
hexc1aa6d

12692077 has 4 divisors (see below), whose sum is σ = 12704256. Its totient is φ = 12679900.

The previous prime is 12692059. The next prime is 12692089. The reversal of 12692077 is 77029621.

12692077 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, and also an emirpimes, since its reverse is a distinct semiprime: 77029621 = 107719903.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-12692077 is a prime.

It is a super-2 number, since 2×126920772 = 322177637147858, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12692027) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4363 + ... + 6664.

It is an arithmetic number, because the mean of its divisors is an integer number (3176064).

Almost surely, 212692077 is an apocalyptic number.

It is an amenable number.

12692077 is a deficient number, since it is larger than the sum of its proper divisors (12179).

12692077 is a wasteful number, since it uses less digits than its factorization.

12692077 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12178.

The product of its (nonzero) digits is 10584, while the sum is 34.

The square root of 12692077 is about 3562.5941391071. The cubic root of 12692077 is about 233.2621277057.

The spelling of 12692077 in words is "twelve million, six hundred ninety-two thousand, seventy-seven".

Divisors: 1 1151 11027 12692077