Search a number
-
+
20654068932 = 22337831013259
BaseRepresentation
bin10011001111000101…
…000001010011000100
31222022102021102011000
4103033011001103010
5314244420201212
613253252213300
71330553455260
oct231705012304
958272242130
1020654068932
118839757762
12400500a230
131c42054983
14ddd1050a0
1580d3b91dc
hex4cf1414c4

20654068932 has 192 divisors, whose sum is σ = 62566963200. Its totient is φ = 5770569600.

The previous prime is 20654068913. The next prime is 20654068933. The reversal of 20654068932 is 23986045602.

20654068932 is a `hidden beast` number, since 20 + 6 + 540 + 6 + 89 + 3 + 2 = 666.

It is not an unprimeable number, because it can be changed into a prime (20654068933) 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, 6335919 + ... + 6339177.

It is an arithmetic number, because the mean of its divisors is an integer number (325869600).

Almost surely, 220654068932 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20654068932, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31283481600).

20654068932 is an abundant number, since it is smaller than the sum of its proper divisors (41912894268).

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

20654068932 is a wasteful number, since it uses less digits than its factorization.

20654068932 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3463 (or 3455 counting only the distinct ones).

The product of its (nonzero) digits is 622080, while the sum is 45.

The spelling of 20654068932 in words is "twenty billion, six hundred fifty-four million, sixty-eight thousand, nine hundred thirty-two".