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9986829893 = 31409787667
BaseRepresentation
bin10010100110100001…
…01110111001000101
3221202222222112010122
421103100232321011
5130423112024033
64330552231325
7502324440065
oct112320567105
927688875118
109986829893
11426533a127
121b2869b545
13c32058a01
146aa4d53a5
153d6b5aa98
hex25342ee45

9986829893 has 8 divisors (see below), whose sum is σ = 10334204160. Its totient is φ = 9641031840.

The previous prime is 9986829887. The next prime is 9986829899. The reversal of 9986829893 is 3989286899.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (9986829887) and next prime (9986829899).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 9986829893 - 28 = 9986829637 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9986829899) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 381155 + ... + 406512.

It is an arithmetic number, because the mean of its divisors is an integer number (1291775520).

Almost surely, 29986829893 is an apocalyptic number.

It is an amenable number.

9986829893 is a deficient number, since it is larger than the sum of its proper divisors (347374267).

9986829893 is a wasteful number, since it uses less digits than its factorization.

9986829893 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 788107.

The product of its digits is 120932352, while the sum is 71.

The square root of 9986829893 is about 99934.1277692461. The cubic root of 9986829893 is about 2153.4884700032.

The spelling of 9986829893 in words is "nine billion, nine hundred eighty-six million, eight hundred twenty-nine thousand, eight hundred ninety-three".

Divisors: 1 31 409 12679 787667 24417677 322155803 9986829893