Base | Representation |
---|---|
bin | 10111110011000011011111 |
3 | 102201221112000 |
4 | 113303003133 |
5 | 3044112211 |
6 | 341413343 |
7 | 104011563 |
oct | 27630337 |
9 | 12657460 |
10 | 6238431 |
11 | 3581031 |
12 | 210a253 |
13 | 13a56a4 |
14 | b856a3 |
15 | 833656 |
hex | 5f30df |
6238431 has 8 divisors (see below), whose sum is σ = 9242160. Its totient is φ = 4158936.
The previous prime is 6238429. The next prime is 6238433. The reversal of 6238431 is 1348326.
It is a happy number.
6238431 is a `hidden beast` number, since 623 + 8 + 4 + 31 = 666.
6238431 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.
It is an interprime number because it is at equal distance from previous prime (6238429) and next prime (6238433).
It is not a de Polignac number, because 6238431 - 21 = 6238429 is a prime.
It is a super-2 number, since 2×62384312 = 77836042683522, which contains 22 as substring.
It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 231053 = 6238431 / (6 + 2 + 3 + 8 + 4 + 3 + 1).
6238431 is a lucky number.
It is a junction number, because it is equal to n+sod(n) for n = 6238395 and 6238404.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (6238433) 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, 115500 + ... + 115553.
It is an arithmetic number, because the mean of its divisors is an integer number (1155270).
Almost surely, 26238431 is an apocalyptic number.
6238431 is a deficient number, since it is larger than the sum of its proper divisors (3003729).
6238431 is a wasteful number, since it uses less digits than its factorization.
6238431 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 231062 (or 231056 counting only the distinct ones).
The product of its digits is 3456, while the sum is 27.
The square root of 6238431 is about 2497.6851282738. The cubic root of 6238431 is about 184.0878499055.
It can be divided in two parts, 6 and 238431, that multiplied together give a triangular number (1430586 = T1691).
The spelling of 6238431 in words is "six million, two hundred thirty-eight thousand, four hundred thirty-one".
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