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8664080 = 245108301
BaseRepresentation
bin100001000011…
…010000010000
3121022011212212
4201003100100
54204222310
6505411252
7133433465
oct41032020
917264785
108664080
1149884a7
122a99b28
131a44799
14121766c
15b62205
hex843410

8664080 has 20 divisors (see below), whose sum is σ = 20144172. Its totient is φ = 3465600.

The previous prime is 8664053. The next prime is 8664107. The reversal of 8664080 is 804668.

It is an interprime number because it is at equal distance from previous prime (8664053) and next prime (8664107).

It can be written as a sum of positive squares in 2 ways, for example, as 5895184 + 2768896 = 2428^2 + 1664^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 54071 + ... + 54230.

Almost surely, 28664080 is an apocalyptic number.

8664080 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

8664080 is an abundant number, since it is smaller than the sum of its proper divisors (11480092).

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

8664080 is a wasteful number, since it uses less digits than its factorization.

8664080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108314 (or 108308 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 32.

The square root of 8664080 is about 2943.4809325015. The cubic root of 8664080 is about 205.3875674285.

The spelling of 8664080 in words is "eight million, six hundred sixty-four thousand, eighty".

Divisors: 1 2 4 5 8 10 16 20 40 80 108301 216602 433204 541505 866408 1083010 1732816 2166020 4332040 8664080