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8501013 = 328910613
BaseRepresentation
bin100000011011…
…011100010101
3120222220012100
4200123130111
54134013023
6502112313
7132154203
oct40333425
916886170
108501013
114886a34
122a1b699
1319b84b1
1411b4073
15b2dc43
hex81b715

8501013 has 12 divisors (see below), whose sum is σ = 12418380. Its totient is φ = 5603136.

The previous prime is 8501011. The next prime is 8501023. The reversal of 8501013 is 3101058.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 5963364 + 2537649 = 2442^2 + 1593^2 .

It is not a de Polignac number, because 8501013 - 21 = 8501011 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8501011) 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 11 ways as a sum of consecutive naturals, for example, 4506 + ... + 6107.

It is an arithmetic number, because the mean of its divisors is an integer number (1034865).

Almost surely, 28501013 is an apocalyptic number.

It is an amenable number.

8501013 is a deficient number, since it is larger than the sum of its proper divisors (3917367).

8501013 is a wasteful number, since it uses less digits than its factorization.

8501013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10708 (or 10705 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 18.

The square root of 8501013 is about 2915.6496703136. The cubic root of 8501013 is about 204.0908620613.

The spelling of 8501013 in words is "eight million, five hundred one thousand, thirteen".

Divisors: 1 3 9 89 267 801 10613 31839 95517 944557 2833671 8501013