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8685702013 = 66791130043
BaseRepresentation
bin10000001011011010…
…10100101101111101
3211102022200101020011
420011231110231331
5120242014431023
63553512423221
7425145151252
oct100555245575
924368611204
108685702013
11375794152a
1218249a7b11
13a85617561
145c579d429
1535c7e650d
hex205b54b7d

8685702013 has 4 divisors (see below), whose sum is σ = 8685898848. Its totient is φ = 8685505180.

The previous prime is 8685702007. The next prime is 8685702019. The reversal of 8685702013 is 3102075868.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (8685702007) and next prime (8685702019).

It is a cyclic number.

It is not a de Polignac number, because 8685702013 - 29 = 8685701501 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8685702019) 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, 1770 + ... + 131812.

It is an arithmetic number, because the mean of its divisors is an integer number (2171474712).

Almost surely, 28685702013 is an apocalyptic number.

It is an amenable number.

8685702013 is a deficient number, since it is larger than the sum of its proper divisors (196835).

8685702013 is a wasteful number, since it uses less digits than its factorization.

8685702013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 196834.

The product of its (nonzero) digits is 80640, while the sum is 40.

The square root of 8685702013 is about 93197.1137589571. The cubic root of 8685702013 is about 2055.5828005454.

The spelling of 8685702013 in words is "eight billion, six hundred eighty-five million, seven hundred two thousand, thirteen".

Divisors: 1 66791 130043 8685702013