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12672419 = 19764327
BaseRepresentation
bin110000010101…
…110110100011
3212211211021212
4300111312203
511221004134
61131340335
7212466554
oct60256643
925754255
1012672419
117175a81
1242b16ab
132819096
14197c32b
1511a4bce
hexc15da3

12672419 has 4 divisors (see below), whose sum is σ = 12736944. Its totient is φ = 12607896.

The previous prime is 12672409. The next prime is 12672427. The reversal of 12672419 is 91427621.

It is a happy number.

12672419 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.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-12672419 is a prime.

It is a super-2 number, since 2×126724192 = 321180406623122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12672409) 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, 31967 + ... + 32360.

It is an arithmetic number, because the mean of its divisors is an integer number (3184236).

Almost surely, 212672419 is an apocalyptic number.

12672419 is a deficient number, since it is larger than the sum of its proper divisors (64525).

12672419 is an equidigital number, since it uses as much as digits as its factorization.

12672419 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64524.

The product of its digits is 6048, while the sum is 32.

The square root of 12672419 is about 3559.8341253491. The cubic root of 12672419 is about 233.1416368848.

The spelling of 12672419 in words is "twelve million, six hundred seventy-two thousand, four hundred nineteen".

Divisors: 1 197 64327 12672419