Base | Representation |
---|---|
bin | 10110100111100… |
… | …110011111010101 |
3 | 222110001120201121 |
4 | 112213212133111 |
5 | 1234121330041 |
6 | 101353323541 |
7 | 12255345514 |
oct | 2647463725 |
9 | 873046647 |
10 | 379480021 |
11 | 18522aa58 |
12 | a71065b1 |
13 | 608085bb |
14 | 3858267b |
15 | 234ad7d1 |
hex | 169e67d5 |
379480021 has 8 divisors (see below), whose sum is σ = 400057344. Its totient is φ = 359423760.
The previous prime is 379480007. The next prime is 379480033. The reversal of 379480021 is 120084973.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 379480021 - 215 = 379447253 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 (379486021) 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, 128770 + ... + 131683.
It is an arithmetic number, because the mean of its divisors is an integer number (50007168).
Almost surely, 2379480021 is an apocalyptic number.
379480021 is a gapful number since it is divisible by the number (31) formed by its first and last digit.
It is an amenable number.
379480021 is a deficient number, since it is larger than the sum of its proper divisors (20577323).
379480021 is a wasteful number, since it uses less digits than its factorization.
379480021 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 260531.
The product of its (nonzero) digits is 12096, while the sum is 34.
The square root of 379480021 is about 19480.2469440200. The cubic root of 379480021 is about 723.9851172882.
The spelling of 379480021 in words is "three hundred seventy-nine million, four hundred eighty thousand, twenty-one".
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