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13024939 = 106312253
BaseRepresentation
bin110001101011…
…111010101011
3220111201212011
4301223322223
511313244224
61143100351
7215465404
oct61537253
926451764
1013024939
117396914
1244416b7
132910685
141a309ab
151224394
hexc6beab

13024939 has 4 divisors (see below), whose sum is σ = 13038256. Its totient is φ = 13011624.

The previous prime is 13024931. The next prime is 13024981. The reversal of 13024939 is 93942031.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 93942031 = 521180311.

It is a cyclic number.

It is not a de Polignac number, because 13024939 - 23 = 13024931 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13024939.

It is not an unprimeable number, because it can be changed into a prime (13024931) 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, 5064 + ... + 7189.

It is an arithmetic number, because the mean of its divisors is an integer number (3259564).

Almost surely, 213024939 is an apocalyptic number.

13024939 is a deficient number, since it is larger than the sum of its proper divisors (13317).

13024939 is a wasteful number, since it uses less digits than its factorization.

13024939 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13316.

The product of its (nonzero) digits is 5832, while the sum is 31.

The square root of 13024939 is about 3609.0080354579. The cubic root of 13024939 is about 235.2837315354.

It can be divided in two parts, 1302 and 4939, that added together give a square (6241 = 792).

The spelling of 13024939 in words is "thirteen million, twenty-four thousand, nine hundred thirty-nine".

Divisors: 1 1063 12253 13024939