Base | Representation |
---|---|
bin | 10110100110110… |
… | …101101100100001 |
3 | 222102200102120101 |
4 | 112212311230201 |
5 | 1234043431121 |
6 | 101345142401 |
7 | 12253554031 |
oct | 2646655441 |
9 | 872612511 |
10 | 379280161 |
11 | 185103887 |
12 | a702aa01 |
13 | 60768640 |
14 | 3852d8c1 |
15 | 2346e491 |
hex | 169b5b21 |
379280161 has 4 divisors (see below), whose sum is σ = 408455572. Its totient is φ = 350104752.
The previous prime is 379280141. The next prime is 379280171. The reversal of 379280161 is 161082973.
It is a semiprime because it is the product of two primes.
It can be written as a sum of positive squares in 2 ways, for example, as 73205136 + 306075025 = 8556^2 + 17495^2 .
It is a cyclic number.
It is not a de Polignac number, because 379280161 - 211 = 379278113 is a prime.
It is a Duffinian number.
It is a self number, because there is not a number n which added to its sum of digits gives 379280161.
It is not an unprimeable number, because it can be changed into a prime (379280101) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14587686 + ... + 14587711.
It is an arithmetic number, because the mean of its divisors is an integer number (102113893).
Almost surely, 2379280161 is an apocalyptic number.
It is an amenable number.
379280161 is a deficient number, since it is larger than the sum of its proper divisors (29175411).
379280161 is a wasteful number, since it uses less digits than its factorization.
379280161 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 29175410.
The product of its (nonzero) digits is 18144, while the sum is 37.
The square root of 379280161 is about 19475.1164566480. The cubic root of 379280161 is about 723.8579950269.
The spelling of 379280161 in words is "three hundred seventy-nine million, two hundred eighty thousand, one hundred sixty-one".
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