| Base | Representation |
|---|---|
| bin | 1011010100001001010… |
| … | …10110100001100100000 |
| 3 | 1101011111020202020002000 |
| 4 | 11222010222310030200 |
| 5 | 22332201323413432 |
| 6 | 454333315524000 |
| 7 | 40042103616210 |
| oct | 5520452641440 |
| 9 | 1334436666060 |
| 10 | 388772872992 |
| 11 | 13a972173739 |
| 12 | 6341b2b9600 |
| 13 | 2a87964c31a |
| 14 | 14b6108c240 |
| 15 | a1a5e4257c |
| hex | 5a84ab4320 |
388772872992 has 384 divisors, whose sum is σ = 1314032025600. Its totient is φ = 109531699200.
The previous prime is 388772872991. The next prime is 388772872997. The reversal of 388772872992 is 299278277883.
388772872992 is a `hidden beast` number, since 388 + 77 + 28 + 72 + 9 + 92 = 666.
It is a super-2 number, since 2×3887728729922 (a number of 24 digits) contains 22 as substring.
It is a Harshad number since it is a multiple of its sum of digits (72).
It is a nude number because it is divisible by every one of its digits.
It is a self number, because there is not a number n which added to its sum of digits gives 388772872992.
It is not an unprimeable number, because it can be changed into a prime (388772872991) 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, 264290817 + ... + 264292287.
It is an arithmetic number, because the mean of its divisors is an integer number (3421958400).
Almost surely, 2388772872992 is an apocalyptic number.
388772872992 is a gapful number since it is divisible by the number (32) 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 388772872992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (657016012800).
388772872992 is an abundant number, since it is smaller than the sum of its proper divisors (925259152608).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
388772872992 is a wasteful number, since it uses less digits than its factorization.
388772872992 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 2077 (or 2063 counting only the distinct ones).
The product of its digits is 341397504, while the sum is 72.
The spelling of 388772872992 in words is "three hundred eighty-eight billion, seven hundred seventy-two million, eight hundred seventy-two thousand, nine hundred ninety-two".
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