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8813961 = 331325111
BaseRepresentation
bin100001100111…
…110110001001
3121120210111000
4201213312021
54224021321
6512525213
7134626452
oct41476611
917523430
108813961
114a80072
122b50809
131a97a80
141256129
15b91826
hex867d89

8813961 has 16 divisors (see below), whose sum is σ = 14062720. Its totient is φ = 5423760.

The previous prime is 8813933. The next prime is 8813963. The reversal of 8813961 is 1693188.

8813961 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 8813961 - 26 = 8813897 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8813963) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12205 + ... + 12906.

It is an arithmetic number, because the mean of its divisors is an integer number (878920).

Almost surely, 28813961 is an apocalyptic number.

It is an amenable number.

8813961 is a deficient number, since it is larger than the sum of its proper divisors (5248759).

8813961 is a wasteful number, since it uses less digits than its factorization.

8813961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25133 (or 25127 counting only the distinct ones).

The product of its digits is 10368, while the sum is 36.

The square root of 8813961 is about 2968.8315883526. The cubic root of 8813961 is about 206.5651446681.

The spelling of 8813961 in words is "eight million, eight hundred thirteen thousand, nine hundred sixty-one".

Divisors: 1 3 9 13 27 39 117 351 25111 75333 225999 326443 677997 979329 2937987 8813961