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8737013 = 42120753
BaseRepresentation
bin100001010101…
…000011110101
3121102212221002
4201111003311
54214041023
6511133045
7134156225
oct41250365
917385832
108737013
114a2827a
122b14185
131a6ba3c
141236085
15b78b28
hex8550f5

8737013 has 4 divisors (see below), whose sum is σ = 8758188. Its totient is φ = 8715840.

The previous prime is 8736989. The next prime is 8737021. The reversal of 8737013 is 3107378.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 908209 + 7828804 = 953^2 + 2798^2 .

It is a cyclic number.

It is not a de Polignac number, because 8737013 - 214 = 8720629 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 (8737063) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9956 + ... + 10797.

It is an arithmetic number, because the mean of its divisors is an integer number (2189547).

Almost surely, 28737013 is an apocalyptic number.

It is an amenable number.

8737013 is a deficient number, since it is larger than the sum of its proper divisors (21175).

8737013 is a wasteful number, since it uses less digits than its factorization.

8737013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21174.

The product of its (nonzero) digits is 3528, while the sum is 29.

The square root of 8737013 is about 2955.8438727375. The cubic root of 8737013 is about 205.9622656871.

The spelling of 8737013 in words is "eight million, seven hundred thirty-seven thousand, thirteen".

Divisors: 1 421 20753 8737013