Base | Representation |
---|---|
bin | 100100001101101111… |
… | …111010011100011100 |
3 | 10201100222200110002010 |
4 | 210031233322130130 |
5 | 1114114123312003 |
6 | 25510320231220 |
7 | 2544421121400 |
oct | 441557723434 |
9 | 121328613063 |
10 | 38885369628 |
11 | 15544860816 |
12 | 765276b510 |
13 | 388917b571 |
14 | 1c4c541100 |
15 | 1028c11003 |
hex | 90dbfa71c |
38885369628 has 108 divisors (see below), whose sum is σ = 112120292760. Its totient is φ = 10456524288.
The previous prime is 38885369623. The next prime is 38885369711. The reversal of 38885369628 is 82696358883.
It is a super-2 number, since 2×388853696282 (a number of 22 digits) contains 22 as substring.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (38885369623) by changing a digit.
It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 55518 + ... + 284346.
Almost surely, 238885369628 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 38885369628, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (56060146380).
38885369628 is an abundant number, since it is smaller than the sum of its proper divisors (73234923132).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
38885369628 is a wasteful number, since it uses less digits than its factorization.
38885369628 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 228884 (or 228858 counting only the distinct ones).
The product of its digits is 119439360, while the sum is 66.
The spelling of 38885369628 in words is "thirty-eight billion, eight hundred eighty-five million, three hundred sixty-nine thousand, six hundred twenty-eight".
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