Base | Representation |
---|---|
bin | 10110101010100… |
… | …111111111111111 |
3 | 222111112211222211 |
4 | 112222213333333 |
5 | 1234322211024 |
6 | 101422321251 |
7 | 12265156405 |
oct | 2652477777 |
9 | 874484884 |
10 | 380272639 |
11 | 18572150a |
12 | a7429227 |
13 | 60a252c6 |
14 | 3870b475 |
15 | 235b8594 |
hex | 16aa7fff |
380272639 has 8 divisors (see below), whose sum is σ = 397422432. Its totient is φ = 363174240.
The previous prime is 380272603. The next prime is 380272667. The reversal of 380272639 is 936272083.
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 380272639 - 223 = 371884031 is a prime.
It is a Duffinian number.
It is a zygodrome in base 3.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (380372639) 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, 2697 + ... + 27709.
It is an arithmetic number, because the mean of its divisors is an integer number (49677804).
Almost surely, 2380272639 is an apocalyptic number.
380272639 is a deficient number, since it is larger than the sum of its proper divisors (17149793).
380272639 is a wasteful number, since it uses less digits than its factorization.
380272639 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 25697.
The product of its (nonzero) digits is 108864, while the sum is 40.
The square root of 380272639 is about 19500.5804785396. The cubic root of 380272639 is about 724.4888281019.
The spelling of 380272639 in words is "three hundred eighty million, two hundred seventy-two thousand, six hundred thirty-nine".
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