Base | Representation |
---|---|
bin | 10110111110000… |
… | …101000000110111 |
3 | 222212010221022000 |
4 | 112332011000313 |
5 | 1242123402330 |
6 | 102123510343 |
7 | 12356416104 |
oct | 2676050067 |
9 | 885127260 |
10 | 385372215 |
11 | 188594938 |
12 | a90883b3 |
13 | 61abc4c7 |
14 | 39277aab |
15 | 23c74560 |
hex | 16f85037 |
385372215 has 16 divisors (see below), whose sum is σ = 685106400. Its totient is φ = 205531776.
The previous prime is 385372187. The next prime is 385372283. The reversal of 385372215 is 512273583.
It is a happy number.
It is not a de Polignac number, because 385372215 - 26 = 385372151 is a prime.
It is a self number, because there is not a number n which added to its sum of digits gives 385372215.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1427170 + ... + 1427439.
It is an arithmetic number, because the mean of its divisors is an integer number (42819150).
Almost surely, 2385372215 is an apocalyptic number.
385372215 is a deficient number, since it is larger than the sum of its proper divisors (299734185).
385372215 is a wasteful number, since it uses less digits than its factorization.
385372215 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 2854623 (or 2854617 counting only the distinct ones).
The product of its digits is 50400, while the sum is 36.
The square root of 385372215 is about 19630.8994954383. The cubic root of 385372215 is about 727.7129995932.
The spelling of 385372215 in words is "three hundred eighty-five million, three hundred seventy-two thousand, two hundred fifteen".
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