Base | Representation |
---|---|
bin | 111001001111… |
… | …0101010100111 |
3 | 2002110200000100 |
4 | 1302132222213 |
5 | 30140310043 |
6 | 2551115143 |
7 | 513036531 |
oct | 162365247 |
9 | 62420010 |
10 | 30010023 |
11 | 15a37a7a |
12 | a072ab3 |
13 | 62a9714 |
14 | 3db2851 |
15 | 297bcd3 |
hex | 1c9eaa7 |
30010023 has 12 divisors (see below), whose sum is σ = 43400448. Its totient is φ = 19982400.
The previous prime is 30010021. The next prime is 30010033. The reversal of 30010023 is 32001003.
It is a happy number.
It is not a de Polignac number, because 30010023 - 21 = 30010021 is a prime.
It is a Harshad number since it is a multiple of its sum of digits (9).
It is a junction number, because it is equal to n+sod(n) for n = 30009987 and 30010014.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30010021) by changing a digit.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8911 + ... + 11807.
It is an arithmetic number, because the mean of its divisors is an integer number (3616704).
Almost surely, 230010023 is an apocalyptic number.
30010023 is a deficient number, since it is larger than the sum of its proper divisors (13390425).
30010023 is a wasteful number, since it uses less digits than its factorization.
30010023 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 4054 (or 4051 counting only the distinct ones).
The product of its (nonzero) digits is 18, while the sum is 9.
The square root of 30010023 is about 5478.1404691738. The cubic root of 30010023 is about 310.7578509550.
Adding to 30010023 its reverse (32001003), we get a palindrome (62011026).
The spelling of 30010023 in words is "thirty million, ten thousand, twenty-three".
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