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12492693 = 321388077
BaseRepresentation
bin101111101001…
…111110010101
3212111200202100
4233221332111
511144231233
61123432313
7211120563
oct57517625
925450670
1012492693
117062a44
124225699
132785335
141932a33
15116b813
hexbe9f95

12492693 has 6 divisors (see below), whose sum is σ = 18045014. Its totient is φ = 8328456.

The previous prime is 12492691. The next prime is 12492713. The reversal of 12492693 is 39629421.

12492693 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 12404484 + 88209 = 3522^2 + 297^2 .

It is not a de Polignac number, because 12492693 - 21 = 12492691 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12492691) 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, 694030 + ... + 694047.

Almost surely, 212492693 is an apocalyptic number.

It is an amenable number.

12492693 is a deficient number, since it is larger than the sum of its proper divisors (5552321).

12492693 is a wasteful number, since it uses less digits than its factorization.

12492693 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1388083 (or 1388080 counting only the distinct ones).

The product of its digits is 23328, while the sum is 36.

The square root of 12492693 is about 3534.5003890225. The cubic root of 12492693 is about 232.0342114134.

The spelling of 12492693 in words is "twelve million, four hundred ninety-two thousand, six hundred ninety-three".

Divisors: 1 3 9 1388077 4164231 12492693