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408808008080 = 2455110100101
BaseRepresentation
bin1011111001011101101…
…10110010100110010000
31110002012112101112121022
411330232312302212100
523144214322224310
6511445342215012
741351433506603
oct5745666624620
91402175345538
10408808008080
1114841351021a
1267290b84468
132c7203a9344
1415b01cbc33a
15a979ceda55
hex5f2edb2990

408808008080 has 20 divisors (see below), whose sum is σ = 950478618972. Its totient is φ = 163523203200.

The previous prime is 408808008073. The next prime is 408808008151. The reversal of 408808008080 is 80800808804.

It can be written as a sum of positive squares in 2 ways, for example, as 252052194304 + 156755813776 = 502048^2 + 395924^2 .

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, 2555049971 + ... + 2555050130.

Almost surely, 2408808008080 is an apocalyptic number.

408808008080 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

408808008080 is an abundant number, since it is smaller than the sum of its proper divisors (541670610892).

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

408808008080 is a wasteful number, since it uses less digits than its factorization.

408808008080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5110100114 (or 5110100108 counting only the distinct ones).

The product of its (nonzero) digits is 131072, while the sum is 44.

The spelling of 408808008080 in words is "four hundred eight billion, eight hundred eight million, eight thousand, eighty".

Divisors: 1 2 4 5 8 10 16 20 40 80 5110100101 10220200202 20440400404 25550500505 40880800808 51101001010 81761601616 102202002020 204404004040 408808008080