Base | Representation |
---|---|
bin | 10111001101101… |
… | …101101111100101 |
3 | 1000010212012001110 |
4 | 113031231233211 |
5 | 1244201034310 |
6 | 102351415233 |
7 | 12436310364 |
oct | 2715555745 |
9 | 1003765043 |
10 | 389471205 |
11 | 18a934532 |
12 | aa524519 |
13 | 628c6146 |
14 | 39a237db |
15 | 242d3d20 |
hex | 1736dbe5 |
389471205 has 16 divisors (see below), whose sum is σ = 623418624. Its totient is φ = 207629760.
The previous prime is 389471191. The next prime is 389471219. The reversal of 389471205 is 502174983.
It is an interprime number because it is at equal distance from previous prime (389471191) and next prime (389471219).
It is not a de Polignac number, because 389471205 - 210 = 389470181 is a prime.
It is a congruent number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 47295 + ... + 54915.
It is an arithmetic number, because the mean of its divisors is an integer number (38963664).
Almost surely, 2389471205 is an apocalyptic number.
It is an amenable number.
389471205 is a deficient number, since it is larger than the sum of its proper divisors (233947419).
389471205 is a wasteful number, since it uses less digits than its factorization.
389471205 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 11036.
The product of its (nonzero) digits is 60480, while the sum is 39.
The square root of 389471205 is about 19735.0248289684. The cubic root of 389471205 is about 730.2839984627.
The spelling of 389471205 in words is "three hundred eighty-nine million, four hundred seventy-one thousand, two hundred five".
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