Base | Representation |
---|---|
bin | 100100000101010000… |
… | …101011000100110000 |
3 | 10201000001201102012022 |
4 | 210011100223010300 |
5 | 1113321144244410 |
6 | 25444232051012 |
7 | 2541041514245 |
oct | 440520530460 |
9 | 121001642168 |
10 | 38742962480 |
11 | 15481435162 |
12 | 7612b33a68 |
13 | 386580a691 |
14 | 1c376715cc |
15 | 101b481455 |
hex | 90542b130 |
38742962480 has 80 divisors (see below), whose sum is σ = 90847042560. Its totient is φ = 15365274624.
The previous prime is 38742962471. The next prime is 38742962509. The reversal of 38742962480 is 8426924783.
It is a tau number, because it is divible by the number of its divisors (80).
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, 5297066 + ... + 5304374.
It is an arithmetic number, because the mean of its divisors is an integer number (1135588032).
Almost surely, 238742962480 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 38742962480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (45423521280).
38742962480 is an abundant number, since it is smaller than the sum of its proper divisors (52104080080).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
38742962480 is a wasteful number, since it uses less digits than its factorization.
38742962480 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 7878 (or 7872 counting only the distinct ones).
The product of its (nonzero) digits is 4644864, while the sum is 53.
The spelling of 38742962480 in words is "thirty-eight billion, seven hundred forty-two million, nine hundred sixty-two thousand, four hundred eighty".
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