Base | Representation |
---|---|
bin | 10110111110000… |
… | …100111111101111 |
3 | 222212010221012100 |
4 | 112332010333233 |
5 | 1242123402033 |
6 | 102123510143 |
7 | 12356415642 |
oct | 2676047757 |
9 | 885127170 |
10 | 385372143 |
11 | 188594882 |
12 | a9088353 |
13 | 61abc470 |
14 | 39277a59 |
15 | 23c74513 |
hex | 16f84fef |
385372143 has 24 divisors (see below), whose sum is σ = 602849520. Its totient is φ = 235814400.
The previous prime is 385372139. The next prime is 385372151. The reversal of 385372143 is 341273583.
It is not a de Polignac number, because 385372143 - 22 = 385372139 is a prime.
It is a junction number, because it is equal to n+sod(n) for n = 385372098 and 385372107.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (385372123) by changing a digit.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11743 + ... + 30143.
It is an arithmetic number, because the mean of its divisors is an integer number (25118730).
Almost surely, 2385372143 is an apocalyptic number.
385372143 is a deficient number, since it is larger than the sum of its proper divisors (217477377).
385372143 is a wasteful number, since it uses less digits than its factorization.
385372143 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 18599 (or 18596 counting only the distinct ones).
The product of its digits is 60480, while the sum is 36.
The square root of 385372143 is about 19630.8976615946. The cubic root of 385372143 is about 727.7129542731.
The spelling of 385372143 in words is "three hundred eighty-five million, three hundred seventy-two thousand, one hundred forty-three".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.066 sec. • engine limits •