Base | Representation |
---|---|
bin | 100011111000100110… |
… | …001110101010010000 |
3 | 10200110020221200102210 |
4 | 203320212032222100 |
5 | 1112402302300311 |
6 | 25411202312120 |
7 | 2532551632545 |
oct | 437046165220 |
9 | 120406850383 |
10 | 38530509456 |
11 | 1538251704a |
12 | 7573958640 |
13 | 38307b312a |
14 | 1c1736abcc |
15 | 10079b73a6 |
hex | 8f898ea90 |
38530509456 has 80 divisors (see below), whose sum is σ = 101700062208. Its totient is φ = 12566630400.
The previous prime is 38530509449. The next prime is 38530509461. The reversal of 38530509456 is 65490503583.
It is a Harshad number since it is a multiple of its sum of digits (48).
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, 524800 + ... + 593696.
Almost surely, 238530509456 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 38530509456, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (50850031104).
38530509456 is an abundant number, since it is smaller than the sum of its proper divisors (63169552752).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
38530509456 is a wasteful number, since it uses less digits than its factorization.
38530509456 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 69160 (or 69154 counting only the distinct ones).
The product of its (nonzero) digits is 1944000, while the sum is 48.
The spelling of 38530509456 in words is "thirty-eight billion, five hundred thirty million, five hundred nine thousand, four hundred fifty-six".
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