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13419239 = 17789367
BaseRepresentation
bin110011001100…
…001011100111
3221020202201212
4303030023213
511413403424
61155342035
7222030101
oct63141347
927222655
1013419239
117636089
1245b191b
132a1aca2
141ad4571
1512a110e
hexccc2e7

13419239 has 4 divisors (see below), whose sum is σ = 14208624. Its totient is φ = 12629856.

The previous prime is 13419233. The next prime is 13419269. The reversal of 13419239 is 93291431.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 93291431 = 313009401.

It is a cyclic number.

It is not a de Polignac number, because 13419239 - 24 = 13419223 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 (13419233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 394667 + ... + 394700.

It is an arithmetic number, because the mean of its divisors is an integer number (3552156).

Almost surely, 213419239 is an apocalyptic number.

13419239 is a deficient number, since it is larger than the sum of its proper divisors (789385).

13419239 is an equidigital number, since it uses as much as digits as its factorization.

13419239 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 789384.

The product of its digits is 5832, while the sum is 32.

The square root of 13419239 is about 3663.2279481354. The cubic root of 13419239 is about 237.6343926358.

The spelling of 13419239 in words is "thirteen million, four hundred nineteen thousand, two hundred thirty-nine".

Divisors: 1 17 789367 13419239