Base | Representation |
---|---|
bin | 10110111110000… |
… | …010100001101111 |
3 | 222212010102022211 |
4 | 112332002201233 |
5 | 1242123041111 |
6 | 102123351251 |
7 | 12356344315 |
oct | 2676024157 |
9 | 885112284 |
10 | 385362031 |
11 | 18858821a |
12 | a9082527 |
13 | 61ab7992 |
14 | 392740b5 |
15 | 23c71521 |
hex | 16f8286f |
385362031 has 4 divisors (see below), whose sum is σ = 385417072. Its totient is φ = 385306992.
The previous prime is 385362013. The next prime is 385362053. The reversal of 385362031 is 130263583.
It is a semiprime because it is the product of two primes.
It is a cyclic number.
It is not a de Polignac number, because 385362031 - 27 = 385361903 is a prime.
It is a super-2 number, since 2×3853620312 = 297007789872889922, which contains 22 as substring.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 385361984 and 385362002.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (385362331) 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, 15171 + ... + 31636.
It is an arithmetic number, because the mean of its divisors is an integer number (96354268).
Almost surely, 2385362031 is an apocalyptic number.
385362031 is a deficient number, since it is larger than the sum of its proper divisors (55041).
385362031 is an equidigital number, since it uses as much as digits as its factorization.
385362031 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 55040.
The product of its (nonzero) digits is 12960, while the sum is 31.
The square root of 385362031 is about 19630.6401067311. The cubic root of 385362031 is about 727.7065892587.
The spelling of 385362031 in words is "three hundred eighty-five million, three hundred sixty-two thousand, thirty-one".
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