Base | Representation |
---|---|
bin | 100011110101000111… |
… | …010001110000010100 |
3 | 10200022011222100101000 |
4 | 203311013101300110 |
5 | 1112242322022040 |
6 | 25401313503300 |
7 | 2531242101645 |
oct | 436507216024 |
9 | 120264870330 |
10 | 38472064020 |
11 | 15352528135 |
12 | 7558271b30 |
13 | 382165b930 |
14 | 1c0d6b56cc |
15 | 10027c0130 |
hex | 8f51d1c14 |
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".
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