Base | Representation |
---|---|
bin | 10110101001100… |
… | …011000100001111 |
3 | 222111000111200100 |
4 | 112221203010033 |
5 | 1234234142122 |
6 | 101412302143 |
7 | 12262602255 |
oct | 2651430417 |
9 | 874014610 |
10 | 379990287 |
11 | 185549366 |
12 | a7311953 |
13 | 60956931 |
14 | 386765d5 |
15 | 2355eaac |
hex | 16a6310f |
379990287 has 6 divisors (see below), whose sum is σ = 548874872. Its totient is φ = 253326852.
The previous prime is 379990283. The next prime is 379990309. The reversal of 379990287 is 782099973.
It is not a de Polignac number, because 379990287 - 22 = 379990283 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (379990283) by changing a digit.
It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 21110563 + ... + 21110580.
Almost surely, 2379990287 is an apocalyptic number.
379990287 is a deficient number, since it is larger than the sum of its proper divisors (168884585).
379990287 is a wasteful number, since it uses less digits than its factorization.
379990287 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 42221149 (or 42221146 counting only the distinct ones).
The product of its (nonzero) digits is 1714608, while the sum is 54.
The square root of 379990287 is about 19493.3395548326. The cubic root of 379990287 is about 724.3094729952.
The spelling of 379990287 in words is "three hundred seventy-nine million, nine hundred ninety thousand, two hundred eighty-seven".
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