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20896186080 = 2535711717963
BaseRepresentation
bin10011011101100000…
…100111111011100000
31222221021212020102210
4103131200213323200
5320243410423310
613333301442120
71336553436210
oct233540477340
958837766383
1020896186080
118953396980
124072110340
131c80267363
14102332c240
15824792820
hex4dd827ee0

20896186080 has 384 divisors, whose sum is σ = 83231318016. Its totient is φ = 4280371200.

The previous prime is 20896186063. The next prime is 20896186081. The reversal of 20896186080 is 8068169802.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20896186081) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2620179 + ... + 2628141.

It is an arithmetic number, because the mean of its divisors is an integer number (216748224).

Almost surely, 220896186080 is an apocalyptic number.

20896186080 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 20896186080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41615659008).

20896186080 is an abundant number, since it is smaller than the sum of its proper divisors (62335131936).

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

20896186080 is a wasteful number, since it uses less digits than its factorization.

20896186080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8070 (or 8062 counting only the distinct ones).

The product of its (nonzero) digits is 331776, while the sum is 48.

The spelling of 20896186080 in words is "twenty billion, eight hundred ninety-six million, one hundred eighty-six thousand, eighty".