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20272654080 = 2835579311
BaseRepresentation
bin10010111000010110…
…000010011100000000
31221022211120112100000
4102320112002130000
5313004244412310
613151345200000
71315242500520
oct227026023400
957284515300
1020272654080
118663426078
123b19330000
131bb101c803
14da45bb680
157d9b774c0
hex4b8582700

20272654080 has 432 divisors, whose sum is σ = 83139323904. Its totient is φ = 4633251840.

The previous prime is 20272654063. The next prime is 20272654081. The reversal of 20272654080 is 8045627202.

It is a tau number, because it is divible by the number of its divisors (432).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20272654081) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2172625 + ... + 2181935.

Almost surely, 220272654080 is an apocalyptic number.

20272654080 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 20272654080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41569661952).

20272654080 is an abundant number, since it is smaller than the sum of its proper divisors (62866669824).

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

20272654080 is an frugal number, since it uses more digits than its factorization.

20272654080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9354 (or 9328 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 36.

The spelling of 20272654080 in words is "twenty billion, two hundred seventy-two million, six hundred fifty-four thousand, eighty".