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20684052000 = 253353191519
BaseRepresentation
bin10011010000110111…
…011001011000100000
31222101111200201012000
4103100313121120200
5314330104131000
613300243004000
71331366353413
oct232067313040
958344621160
1020684052000
118854676457
124013069600
131c48322031
1410030abb7a
15810d3d000
hex4d0dd9620

20684052000 has 192 divisors, whose sum is σ = 75290342400. Its totient is φ = 5515718400.

The previous prime is 20684051989. The next prime is 20684052047. The reversal of 20684052000 is 25048602.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12241 + ... + 203759.

It is an arithmetic number, because the mean of its divisors is an integer number (392137200).

Almost surely, 220684052000 is an apocalyptic number.

20684052000 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 20684052000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37645171200).

20684052000 is an abundant number, since it is smaller than the sum of its proper divisors (54606290400).

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

20684052000 is a wasteful number, since it uses less digits than its factorization.

20684052000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 191553 (or 191529 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 27.

It can be divided in two parts, 206840 and 52000, that added together give a triangular number (258840 = T719).

The spelling of 20684052000 in words is "twenty billion, six hundred eighty-four million, fifty-two thousand".