Base | Representation |
---|---|
bin | 10110100111001… |
… | …111111011110110 |
3 | 222102212220000000 |
4 | 112213033323312 |
5 | 1234110401023 |
6 | 101351332130 |
7 | 12254512260 |
oct | 2647177366 |
9 | 872786000 |
10 | 379387638 |
11 | 185177603 |
12 | a7081046 |
13 | 607a5536 |
14 | 3855ab30 |
15 | 23491243 |
hex | 169cfef6 |
379387638 has 64 divisors (see below), whose sum is σ = 975498240. Its totient is φ = 108387720.
The previous prime is 379387607. The next prime is 379387681. The reversal of 379387638 is 836783973.
It is a Harshad number since it is a multiple of its sum of digits (54).
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 24423 + ... + 36813.
It is an arithmetic number, because the mean of its divisors is an integer number (15242160).
Almost surely, 2379387638 is an apocalyptic number.
It is a practical number, because each smaller number is the sum of distinct divisors of 379387638, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (487749120).
379387638 is an abundant number, since it is smaller than the sum of its proper divisors (596110602).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
379387638 is an equidigital number, since it uses as much as digits as its factorization.
379387638 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 12421 (or 12403 counting only the distinct ones).
The product of its digits is 4572288, while the sum is 54.
The square root of 379387638 is about 19477.8756028475. The cubic root of 379387638 is about 723.9263620251.
The spelling of 379387638 in words is "three hundred seventy-nine million, three hundred eighty-seven thousand, six hundred thirty-eight".
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