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13040706 = 237417573
BaseRepresentation
bin110001101111…
…110001000010
3220112112111010
4301233301002
511314300311
61143301350
7215562360
oct61576102
926475433
1013040706
1173a7748
12444a856
1329178c3
141a36630
151228da6
hexc6fc42

13040706 has 32 divisors (see below), whose sum is σ = 30538368. Its totient is φ = 3634560.

The previous prime is 13040693. The next prime is 13040743. The reversal of 13040706 is 60704031.

13040706 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2065 + ... + 5508.

It is an arithmetic number, because the mean of its divisors is an integer number (954324).

Almost surely, 213040706 is an apocalyptic number.

13040706 is an abundant number, since it is smaller than the sum of its proper divisors (17497662).

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

13040706 is a wasteful number, since it uses less digits than its factorization.

13040706 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7626.

The product of its (nonzero) digits is 504, while the sum is 21.

The square root of 13040706 is about 3611.1917700394. The cubic root of 13040706 is about 235.3786321130.

Adding to 13040706 its reverse (60704031), we get a palindrome (73744737).

The spelling of 13040706 in words is "thirteen million, forty thousand, seven hundred six".

Divisors: 1 2 3 6 7 14 21 41 42 82 123 246 287 574 861 1722 7573 15146 22719 45438 53011 106022 159033 310493 318066 620986 931479 1862958 2173451 4346902 6520353 13040706