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13068747 = 321452083
BaseRepresentation
bin110001110110…
…100111001011
3220120221221200
4301312213023
511321144442
61144035243
7216040206
oct61664713
926527850
1013068747
11741681a
124462b23
1329275b3
141a4293d
15123234c
hexc769cb

13068747 has 6 divisors (see below), whose sum is σ = 18877092. Its totient is φ = 8712492.

The previous prime is 13068739. The next prime is 13068749. The reversal of 13068747 is 74786031.

It is not a de Polignac number, because 13068747 - 23 = 13068739 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13068749) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 726033 + ... + 726050.

It is an arithmetic number, because the mean of its divisors is an integer number (3146182).

Almost surely, 213068747 is an apocalyptic number.

13068747 is a deficient number, since it is larger than the sum of its proper divisors (5808345).

13068747 is a wasteful number, since it uses less digits than its factorization.

13068747 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1452089 (or 1452086 counting only the distinct ones).

The product of its (nonzero) digits is 28224, while the sum is 36.

The square root of 13068747 is about 3615.0721984492. The cubic root of 13068747 is about 235.5472203039.

The spelling of 13068747 in words is "thirteen million, sixty-eight thousand, seven hundred forty-seven".

Divisors: 1 3 9 1452083 4356249 13068747