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20206882080 = 2534571120249
BaseRepresentation
bin10010110100011011…
…001000110100100000
31221011020210222010000
4102310123020310200
5312340430211310
613141035340000
71313513443440
oct226433106440
957136728100
1020206882080
11862a292650
123abb2b1600
131ba0501578
14d9997a120
157d3ed44c0
hex4b46c8d20

20206882080 has 480 divisors, whose sum is σ = 88914672000. Its totient is φ = 4198625280.

The previous prime is 20206882037. The next prime is 20206882081. The reversal of 20206882080 is 8028860202.

It is a tau number, because it is divible by the number of its divisors (480).

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

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

It is not an unprimeable number, because it can be changed into a prime (20206882081) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 987796 + ... + 1008044.

It is an arithmetic number, because the mean of its divisors is an integer number (185238900).

Almost surely, 220206882080 is an apocalyptic number.

20206882080 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 20206882080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (44457336000).

20206882080 is an abundant number, since it is smaller than the sum of its proper divisors (68707789920).

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

20206882080 is a wasteful number, since it uses less digits than its factorization.

20206882080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20294 (or 20277 counting only the distinct ones).

The product of its (nonzero) digits is 24576, while the sum is 36.

The spelling of 20206882080 in words is "twenty billion, two hundred six million, eight hundred eighty-two thousand, eighty".