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13240967 = 19696893
BaseRepresentation
bin110010100000…
…101010000111
3220220201012012
4302200222013
511342202332
61151444435
7220355255
oct62405207
926821165
1013240967
117524153
12452671b
132987abc
141a895d5
1512683b2
hexca0a87

13240967 has 4 divisors (see below), whose sum is σ = 13937880. Its totient is φ = 12544056.

The previous prime is 13240949. The next prime is 13240973. The reversal of 13240967 is 76904231.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 76904231 = 83926557.

It is a cyclic number.

It is not a de Polignac number, because 13240967 - 210 = 13239943 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 (13242967) 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, 348428 + ... + 348465.

It is an arithmetic number, because the mean of its divisors is an integer number (3484470).

Almost surely, 213240967 is an apocalyptic number.

13240967 is a deficient number, since it is larger than the sum of its proper divisors (696913).

13240967 is an equidigital number, since it uses as much as digits as its factorization.

13240967 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 696912.

The product of its (nonzero) digits is 9072, while the sum is 32.

The square root of 13240967 is about 3638.8139551233. The cubic root of 13240967 is about 236.5773890156.

The spelling of 13240967 in words is "thirteen million, two hundred forty thousand, nine hundred sixty-seven".

Divisors: 1 19 696893 13240967