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20614341888 = 28347142019
BaseRepresentation
bin10011001100101101…
…011110010100000000
31222012122112001220000
4103030231132110000
5314204232420023
613245312520000
71326562005060
oct231455362400
958178461800
1020614341888
118819293198
123bb3850000
131c36a5544a
14dd7b233a0
15809b6d243
hex4ccb5e500

20614341888 has 180 divisors, whose sum is σ = 70249908960. Its totient is φ = 5889770496.

The previous prime is 20614341883. The next prime is 20614341911. The reversal of 20614341888 is 88814341602.

20614341888 is a `hidden beast` number, since 20 + 614 + 3 + 4 + 1 + 8 + 8 + 8 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20614341883) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 74143 + ... + 216161.

It is an arithmetic number, because the mean of its divisors is an integer number (390277272).

Almost surely, 220614341888 is an apocalyptic number.

20614341888 is a gapful number since it is divisible by the number (28) 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 20614341888, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35124954480).

20614341888 is an abundant number, since it is smaller than the sum of its proper divisors (49635567072).

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

20614341888 is an equidigital number, since it uses as much as digits as its factorization.

20614341888 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142054 (or 142031 counting only the distinct ones).

The product of its (nonzero) digits is 294912, while the sum is 45.

The spelling of 20614341888 in words is "twenty billion, six hundred fourteen million, three hundred forty-one thousand, eight hundred eighty-eight".