Base | Representation |
---|---|
bin | 100100000111100001… |
… | …110010011101100100 |
3 | 10201002201022002211102 |
4 | 210013201302131210 |
5 | 1113410414103440 |
6 | 25452111255232 |
7 | 2542013043332 |
oct | 440741623544 |
9 | 121081262742 |
10 | 38781003620 |
11 | 154a0958017 |
12 | 762381a518 |
13 | 3870669728 |
14 | 1c3c734b52 |
15 | 101e997b15 |
hex | 907872764 |
38781003620 has 24 divisors (see below), whose sum is σ = 82470998400. Its totient is φ = 15316041312.
The previous prime is 38781003601. The next prime is 38781003629. The reversal of 38781003620 is 2630018783.
It is a happy number.
It is not an unprimeable number, because it can be changed into a prime (38781003629) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12270890 + ... + 12274049.
It is an arithmetic number, because the mean of its divisors is an integer number (3436291600).
Almost surely, 238781003620 is an apocalyptic number.
It is an amenable number.
38781003620 is an abundant number, since it is smaller than the sum of its proper divisors (43689994780).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
38781003620 is a wasteful number, since it uses less digits than its factorization.
38781003620 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 24545027 (or 24545025 counting only the distinct ones).
The product of its (nonzero) digits is 48384, while the sum is 38.
The spelling of 38781003620 in words is "thirty-eight billion, seven hundred eighty-one million, three thousand, six hundred twenty".
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