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8861982 = 2313710781
BaseRepresentation
bin100001110011…
…100100011110
3121200020100120
4201303210132
54232040412
6513535410
7135216453
oct41634436
917606316
108861982
115003158
122b74566
131ab389c
14126982a
15ba0b8c
hex87391e

8861982 has 16 divisors (see below), whose sum is σ = 17854992. Its totient is φ = 2932160.

The previous prime is 8861929. The next prime is 8861987. The reversal of 8861982 is 2891688.

8861982 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8861987) 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, 4569 + ... + 6212.

It is an arithmetic number, because the mean of its divisors is an integer number (1115937).

Almost surely, 28861982 is an apocalyptic number.

8861982 is an abundant number, since it is smaller than the sum of its proper divisors (8993010).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8861982 is a wasteful number, since it uses less digits than its factorization.

8861982 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10923.

The product of its digits is 55296, while the sum is 42.

The square root of 8861982 is about 2976.9081275713. The cubic root of 8861982 is about 206.9396075776.

The spelling of 8861982 in words is "eight million, eight hundred sixty-one thousand, nine hundred eighty-two".

Divisors: 1 2 3 6 137 274 411 822 10781 21562 32343 64686 1476997 2953994 4430991 8861982