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38472064020 = 22335136618291
BaseRepresentation
bin100011110101000111…
…010001110000010100
310200022011222100101000
4203311013101300110
51112242322022040
625401313503300
72531242101645
oct436507216024
9120264870330
1038472064020
1115352528135
127558271b30
13382165b930
141c0d6b56cc
1510027c0130
hex8f51d1c14

38472064020 has 192 divisors, whose sum is σ = 129108430080. Its totient is φ = 9454579200.

The previous prime is 38472064019. The next prime is 38472064067. The reversal of 38472064020 is 2046027483.

38472064020 is a `hidden beast` number, since 3 + 8 + 4 + 7 + 2 + 0 + 640 + 2 + 0 = 666.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 4636075 + ... + 4644365.

It is an arithmetic number, because the mean of its divisors is an integer number (672439740).

Almost surely, 238472064020 is an apocalyptic number.

38472064020 is a gapful number since it is divisible by the number (30) 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 38472064020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (64554215040).

38472064020 is an abundant number, since it is smaller than the sum of its proper divisors (90636366060).

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

38472064020 is a wasteful number, since it uses less digits than its factorization.

38472064020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8983 (or 8975 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 36.

The spelling of 38472064020 in words is "thirty-eight billion, four hundred seventy-two million, sixty-four thousand, twenty".