Base | Representation |
---|---|
bin | 100100000011000111… |
… | …101000101110010000 |
3 | 10200220120010022121111 |
4 | 210003013220232100 |
5 | 1113233000222440 |
6 | 25440510103104 |
7 | 2540124255361 |
oct | 440307505620 |
9 | 120816108544 |
10 | 38707039120 |
11 | 15463129432 |
12 | 7602aaaa94 |
13 | 385b240559 |
14 | 1c3299db68 |
15 | 10182374ea |
hex | 9031e8b90 |
38707039120 has 20 divisors (see below), whose sum is σ = 89993866140. Its totient is φ = 15482815616.
The previous prime is 38707039093. The next prime is 38707039187. The reversal of 38707039120 is 2193070783.
It can be written as a sum of positive squares in 2 ways, for example, as 23295306384 + 15411732736 = 152628^2 + 124144^2 .
It is a tau number, because it is divible by the number of its divisors (20).
It is a Harshad number since it is a multiple of its sum of digits (40).
It is an unprimeable number.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 241918915 + ... + 241919074.
It is an arithmetic number, because the mean of its divisors is an integer number (4499693307).
Almost surely, 238707039120 is an apocalyptic number.
It is an amenable number.
38707039120 is an abundant number, since it is smaller than the sum of its proper divisors (51286827020).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
38707039120 is a wasteful number, since it uses less digits than its factorization.
38707039120 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 483838002 (or 483837996 counting only the distinct ones).
The product of its (nonzero) digits is 63504, while the sum is 40.
The spelling of 38707039120 in words is "thirty-eight billion, seven hundred seven million, thirty-nine thousand, one hundred twenty".
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