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12719793 = 34239931
BaseRepresentation
bin110000100001…
…011010110001
3212221020021110
4300201122301
511224013133
61132343533
7213054642
oct60413261
925836243
1012719793
1171a8629
124314ba9
132834808
1419916c9
1511b3c63
hexc216b1

12719793 has 4 divisors (see below), whose sum is σ = 16959728. Its totient is φ = 8479860.

The previous prime is 12719789. The next prime is 12719803. The reversal of 12719793 is 39791721.

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.

It is not a de Polignac number, because 12719793 - 22 = 12719789 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12719743) 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, 2119963 + ... + 2119968.

It is an arithmetic number, because the mean of its divisors is an integer number (4239932).

Almost surely, 212719793 is an apocalyptic number.

It is an amenable number.

12719793 is a deficient number, since it is larger than the sum of its proper divisors (4239935).

12719793 is an equidigital number, since it uses as much as digits as its factorization.

12719793 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4239934.

The product of its digits is 23814, while the sum is 39.

The square root of 12719793 is about 3566.4818799484. The cubic root of 12719793 is about 233.4317976722.

The spelling of 12719793 in words is "twelve million, seven hundred nineteen thousand, seven hundred ninety-three".

Divisors: 1 3 4239931 12719793