Base | Representation |
---|---|
bin | 10110101011000… |
… | …110000111101111 |
3 | 222111210010020022 |
4 | 112223012013233 |
5 | 1234340133030 |
6 | 101425112355 |
7 | 12266212166 |
oct | 2653060757 |
9 | 874703208 |
10 | 380396015 |
11 | 1857a617a |
12 | a74886bb |
13 | 60a694cc |
14 | 387403dd |
15 | 235dede5 |
hex | 16ac61ef |
380396015 has 4 divisors (see below), whose sum is σ = 456475224. Its totient is φ = 304316808.
The previous prime is 380395993. The next prime is 380396039. The reversal of 380396015 is 510693083.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 510693083 = 2113 ⋅241691.
It is a cyclic number.
It is not a de Polignac number, because 380396015 - 212 = 380391919 is a prime.
It is a super-2 number, since 2×3803960152 = 289402256455760450, which contains 22 as substring.
It is a Duffinian number.
It is a congruent number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38039597 + ... + 38039606.
It is an arithmetic number, because the mean of its divisors is an integer number (114118806).
Almost surely, 2380396015 is an apocalyptic number.
380396015 is a deficient number, since it is larger than the sum of its proper divisors (76079209).
380396015 is an equidigital number, since it uses as much as digits as its factorization.
380396015 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 76079208.
The product of its (nonzero) digits is 19440, while the sum is 35.
The square root of 380396015 is about 19503.7436150089. The cubic root of 380396015 is about 724.5671709009.
The spelling of 380396015 in words is "three hundred eighty million, three hundred ninety-six thousand, fifteen".
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