Base | Representation |
---|---|
bin | 10000101111100010100111 |
3 | 22020222121201 |
4 | 100233202213 |
5 | 2110422111 |
6 | 234023331 |
7 | 52210003 |
oct | 20574247 |
9 | 8228551 |
10 | 4389031 |
11 | 25285a9 |
12 | 1577b47 |
13 | ba897a |
14 | 823703 |
15 | 5ba6c1 |
hex | 42f8a7 |
4389031 has 2 divisors, whose sum is σ = 4389032. Its totient is φ = 4389030.
The previous prime is 4389029. The next prime is 4389041. The reversal of 4389031 is 1309834.
It is a weak prime.
It is a cyclic number.
It is not a de Polignac number, because 4389031 - 21 = 4389029 is a prime.
It is a super-2 number, since 2×43890312 = 38527186237922, which contains 22 as substring.
Together with 4389029, it forms a pair of twin primes.
It is equal to p308629 and since 4389031 and 308629 have the same sum of digits, it is a Honaker prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (4389041) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2194515 + 2194516.
It is an arithmetic number, because the mean of its divisors is an integer number (2194516).
Almost surely, 24389031 is an apocalyptic number.
4389031 is a deficient number, since it is larger than the sum of its proper divisors (1).
4389031 is an equidigital number, since it uses as much as digits as its factorization.
4389031 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 2592, while the sum is 28.
The square root of 4389031 is about 2095.0014319804. The cubic root of 4389031 is about 163.7279720966.
The spelling of 4389031 in words is "four million, three hundred eighty-nine thousand, thirty-one".
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