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20308801070 = 255839347813
BaseRepresentation
bin10010111010011111…
…111011011000101110
31221102100120222200102
4102322133323120232
5313043023113240
613155120031102
71316161650365
oct227237733056
957370528612
1020308801070
118681874918
123b29462492
131bb866766c
14da930a7dc
157dce17815
hex4ba7fb62e

20308801070 has 16 divisors (see below), whose sum is σ = 36562207680. Its totient is φ = 8122105824.

The previous prime is 20308801063. The next prime is 20308801081. The reversal of 20308801070 is 7010880302.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 115517 + ... + 232296.

It is an arithmetic number, because the mean of its divisors is an integer number (2285137980).

Almost surely, 220308801070 is an apocalyptic number.

20308801070 is a deficient number, since it is larger than the sum of its proper divisors (16253406610).

20308801070 is a wasteful number, since it uses less digits than its factorization.

20308801070 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 353659.

The product of its (nonzero) digits is 2688, while the sum is 29.

The spelling of 20308801070 in words is "twenty billion, three hundred eight million, eight hundred one thousand, seventy".

Divisors: 1 2 5 10 5839 11678 29195 58390 347813 695626 1739065 3478130 2030880107 4061760214 10154400535 20308801070