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13239078 = 232206513
BaseRepresentation
bin110010100000…
…001100100110
3220220121121020
4302200030212
511342122303
61151432010
7220346616
oct62401446
926817536
1013239078
117522796
124525606
132986c98
141a88a46
151267a53
hexca0326

13239078 has 8 divisors (see below), whose sum is σ = 26478168. Its totient is φ = 4413024.

The previous prime is 13239059. The next prime is 13239103. The reversal of 13239078 is 87093231.

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

13239078 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1103251 + ... + 1103262.

It is an arithmetic number, because the mean of its divisors is an integer number (3309771).

Almost surely, 213239078 is an apocalyptic number.

13239078 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13239078 is a wasteful number, since it uses less digits than its factorization.

13239078 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2206518.

The product of its (nonzero) digits is 9072, while the sum is 33.

The square root of 13239078 is about 3638.5543832682. The cubic root of 13239078 is about 236.5661381771.

It can be divided in two parts, 1323 and 9078, that added together give a palindrome (10401).

The spelling of 13239078 in words is "thirteen million, two hundred thirty-nine thousand, seventy-eight".

Divisors: 1 2 3 6 2206513 4413026 6619539 13239078