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20108943360 = 213345111929
BaseRepresentation
bin10010101110100101…
…100010000000000000
31220220102112011110000
4102232211202000000
5312140342141420
613123220240000
71311214125012
oct225645420000
956812464400
1020108943360
118589a79860
123a92540000
131b8613006c
14d8a9641b2
157ca5da690
hex4ae962000

20108943360 has 1120 divisors, whose sum is σ = 85637217600. Its totient is φ = 4459069440.

The previous prime is 20108943329. The next prime is 20108943403. The reversal of 20108943360 is 6334980102.

20108943360 is a `hidden beast` number, since 201 + 0 + 8 + 94 + 3 + 360 = 666.

It is a super-3 number, since 3×201089433603 (a number of 32 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 693411826 + ... + 693411854.

Almost surely, 220108943360 is an apocalyptic number.

20108943360 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20108943360, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (42818608800).

20108943360 is an abundant number, since it is smaller than the sum of its proper divisors (65528274240).

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

20108943360 is a wasteful number, since it uses less digits than its factorization.

20108943360 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102 (or 69 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 36.

The spelling of 20108943360 in words is "twenty billion, one hundred eight million, nine hundred forty-three thousand, three hundred sixty".