Base | Representation |
---|---|
bin | 10110101100000… |
… | …111010110010111 |
3 | 222112021200201201 |
4 | 112230013112113 |
5 | 1234422210231 |
6 | 101434533331 |
7 | 12301404136 |
oct | 2654072627 |
9 | 875250651 |
10 | 380663191 |
11 | 185968987 |
12 | a7597247 |
13 | 60b30cbc |
14 | 387ad91d |
15 | 23644161 |
hex | 16b07597 |
380663191 has 8 divisors (see below), whose sum is σ = 385035264. Its totient is φ = 376316280.
The previous prime is 380663123. The next prime is 380663197. The reversal of 380663191 is 191366083.
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 380663191 - 219 = 380138903 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 380663191.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (380663197) 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, 25020 + ... + 37246.
It is an arithmetic number, because the mean of its divisors is an integer number (48129408).
Almost surely, 2380663191 is an apocalyptic number.
380663191 is a deficient number, since it is larger than the sum of its proper divisors (4372073).
380663191 is a wasteful number, since it uses less digits than its factorization.
380663191 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 12581.
The product of its (nonzero) digits is 23328, while the sum is 37.
The square root of 380663191 is about 19510.5917644750. The cubic root of 380663191 is about 724.7367675368.
The spelling of 380663191 in words is "three hundred eighty million, six hundred sixty-three thousand, one hundred ninety-one".
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