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84408008 = 2310551001
BaseRepresentation
bin1010000011111…
…11011011001000
312212211101000112
411001333123020
5133102024013
612213053452
72043312326
oct501773310
9185741015
1084408008
1143711a93
1224327288
1314644889
14b2d2d16
157624ba8
hex507f6c8

84408008 has 8 divisors (see below), whose sum is σ = 158265030. Its totient is φ = 42204000.

The previous prime is 84408001. The next prime is 84408041. The reversal of 84408008 is 80080448.

It can be written as a sum of positive squares in only one way, i.e., 78464164 + 5943844 = 8858^2 + 2438^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (84408001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5275493 + ... + 5275508.

Almost surely, 284408008 is an apocalyptic number.

It is an amenable number.

84408008 is a deficient number, since it is larger than the sum of its proper divisors (73857022).

84408008 is a wasteful number, since it uses less digits than its factorization.

84408008 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10551007 (or 10551003 counting only the distinct ones).

The product of its (nonzero) digits is 8192, while the sum is 32.

The square root of 84408008 is about 9187.3830876915. The cubic root of 84408008 is about 438.6598479286.

The spelling of 84408008 in words is "eighty-four million, four hundred eight thousand, eight".

Divisors: 1 2 4 8 10551001 21102002 42204004 84408008