Base | Representation |
---|---|
bin | 10111000100100… |
… | …100010111001000 |
3 | 222222100100222211 |
4 | 113010210113020 |
5 | 1243042322410 |
6 | 102224154504 |
7 | 12410033053 |
oct | 2704442710 |
9 | 888310884 |
10 | 387073480 |
11 | 189547042 |
12 | a9768a34 |
13 | 62266981 |
14 | 3959ba9a |
15 | 23ead68a |
hex | 171245c8 |
387073480 has 32 divisors (see below), whose sum is σ = 875354040. Its totient is φ = 154040320.
The previous prime is 387073451. The next prime is 387073481. The reversal of 387073480 is 84370783.
It can be written as a sum of positive squares in 4 ways, for example, as 325513764 + 61559716 = 18042^2 + 7846^2 .
It is a Harshad number since it is a multiple of its sum of digits (40).
It is not an unprimeable number, because it can be changed into a prime (387073481) 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, 16681 + ... + 32440.
Almost surely, 2387073480 is an apocalyptic number.
It is an amenable number.
387073480 is an abundant number, since it is smaller than the sum of its proper divisors (488280560).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
387073480 is a wasteful number, since it uses less digits than its factorization.
387073480 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 49329 (or 49325 counting only the distinct ones).
The product of its (nonzero) digits is 112896, while the sum is 40.
The square root of 387073480 is about 19674.1830834218. The cubic root of 387073480 is about 728.7822820998.
The spelling of 387073480 in words is "three hundred eighty-seven million, seventy-three thousand, four hundred eighty".
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