Base | Representation |
---|---|
bin | 10001100101101101000001… |
… | …11100001110101011100100 |
3 | 12001221122221200210002211000 |
4 | 20302312200330032223210 |
5 | 20032203321421100222 |
6 | 214132455451313300 |
7 | 11101312501564113 |
oct | 1062664074165344 |
9 | 161848850702730 |
10 | 38678880643812 |
11 | 11362691849002 |
12 | 4408286a4b830 |
13 | 1877530c28676 |
14 | 97a0d410bc7a |
15 | 4711d6b6e9ac |
hex | 232da0f0eae4 |
38678880643812 has 48 divisors (see below), whose sum is σ = 100281318480000. Its totient is φ = 12892608053280.
The previous prime is 38678880643759. The next prime is 38678880643829. The reversal of 38678880643812 is 21834608887683.
38678880643812 is a `hidden beast` number, since 38 + 6 + 7 + 88 + 80 + 6 + 438 + 1 + 2 = 666.
It is a super-2 number, since 2×386788806438122 (a number of 28 digits) contains 22 as substring.
It is an unprimeable number.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 903864 + ... + 8841647.
It is an arithmetic number, because the mean of its divisors is an integer number (2089194135000).
Almost surely, 238678880643812 is an apocalyptic number.
It is an amenable number.
38678880643812 is an abundant number, since it is smaller than the sum of its proper divisors (61602437836188).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
38678880643812 is a wasteful number, since it uses less digits than its factorization.
38678880643812 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 9782273 (or 9782265 counting only the distinct ones).
The product of its (nonzero) digits is 594542592, while the sum is 72.
The spelling of 38678880643812 in words is "thirty-eight trillion, six hundred seventy-eight billion, eight hundred eighty million, six hundred forty-three thousand, eight hundred twelve".
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