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9072713 = 131761673
BaseRepresentation
bin100010100111…
…000001001001
3122001221102102
4202213001021
54310311323
6522243145
7140055026
oct42470111
918057372
109072713
115137511
1230564b5
131b58790
1412c254d
15be3328
hex8a7049

9072713 has 16 divisors (see below), whose sum is σ = 10530576. Its totient is φ = 7741440.

The previous prime is 9072689. The next prime is 9072727. The reversal of 9072713 is 3172709.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 1630729 + 7441984 = 1277^2 + 2728^2 .

It is a cyclic number.

It is not a de Polignac number, because 9072713 - 214 = 9056329 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 (9072793) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13145 + ... + 13817.

It is an arithmetic number, because the mean of its divisors is an integer number (658161).

Almost surely, 29072713 is an apocalyptic number.

It is an amenable number.

9072713 is a deficient number, since it is larger than the sum of its proper divisors (1457863).

9072713 is a wasteful number, since it uses less digits than its factorization.

9072713 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 764.

The product of its (nonzero) digits is 2646, while the sum is 29.

The square root of 9072713 is about 3012.0944540303. The cubic root of 9072713 is about 208.5670624103.

The spelling of 9072713 in words is "nine million, seventy-two thousand, seven hundred thirteen".

Divisors: 1 13 17 61 221 673 793 1037 8749 11441 13481 41053 148733 533689 697901 9072713