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802687013 = 2039393667
BaseRepresentation
bin101111110110000…
…000100000100101
32001221101201120122
4233312000200211
53120441441023
6211352211325
725614504242
oct5766004045
92057351518
10802687013
113821066a7
121a4999b45
13ca3b3c3b
14788685c9
154a7082c8
hex2fd80825

802687013 has 4 divisors (see below), whose sum is σ = 803082720. Its totient is φ = 802291308.

The previous prime is 802686949. The next prime is 802687031. The reversal of 802687013 is 310786208.

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 a cyclic number.

It is not a de Polignac number, because 802687013 - 26 = 802686949 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 (802687033) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 194795 + ... + 198872.

It is an arithmetic number, because the mean of its divisors is an integer number (200770680).

Almost surely, 2802687013 is an apocalyptic number.

It is an amenable number.

802687013 is a deficient number, since it is larger than the sum of its proper divisors (395707).

802687013 is a wasteful number, since it uses less digits than its factorization.

802687013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 395706.

The product of its (nonzero) digits is 16128, while the sum is 35.

The square root of 802687013 is about 28331.7315566839. The cubic root of 802687013 is about 929.3559393903.

The spelling of 802687013 in words is "eight hundred two million, six hundred eighty-seven thousand, thirteen".

Divisors: 1 2039 393667 802687013