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12939493 = 73159629
BaseRepresentation
bin110001010111…
…000011100101
3220100101122111
4301113003211
511303030433
61141201021
7214661320
oct61270345
926311574
1012939493
1173386a6
124400171
1328b0808
141a0b7b7
151208dcd
hexc570e5

12939493 has 8 divisors (see below), whose sum is σ = 15265280. Its totient is φ = 10733040.

The previous prime is 12939491. The next prime is 12939541. The reversal of 12939493 is 39493921.

12939493 is digitally balanced in base 2 and base 8, because in such bases it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 12939493 - 21 = 12939491 is a prime.

It is a Duffinian number.

12939493 is strictly pandigital in base 8.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12939491) 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, 29598 + ... + 30031.

It is an arithmetic number, because the mean of its divisors is an integer number (1908160).

Almost surely, 212939493 is an apocalyptic number.

It is an amenable number.

12939493 is a deficient number, since it is larger than the sum of its proper divisors (2325787).

12939493 is an equidigital number, since it uses as much as digits as its factorization.

12939493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59667.

The product of its digits is 52488, while the sum is 40.

The square root of 12939493 is about 3597.1506779672. The cubic root of 12939493 is about 234.7681007968.

The spelling of 12939493 in words is "twelve million, nine hundred thirty-nine thousand, four hundred ninety-three".

Divisors: 1 7 31 217 59629 417403 1848499 12939493