Base | Representation |
---|---|
bin | 111001101001… |
… | …0111000011101 |
3 | 2002212112101202 |
4 | 1303102320131 |
5 | 30214131101 |
6 | 2555445245 |
7 | 514620221 |
oct | 163227035 |
9 | 62775352 |
10 | 30223901 |
11 | 16073734 |
12 | a156825 |
13 | 6352b86 |
14 | 402a781 |
15 | 29c036b |
hex | 1cd2e1d |
30223901 has 4 divisors (see below), whose sum is σ = 30675072. Its totient is φ = 29772732.
The previous prime is 30223891. The next prime is 30223903. The reversal of 30223901 is 10932203.
It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.
It is a cyclic number.
It is not a de Polignac number, because 30223901 - 214 = 30207517 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30223903) 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, 225485 + ... + 225618.
It is an arithmetic number, because the mean of its divisors is an integer number (7668768).
Almost surely, 230223901 is an apocalyptic number.
It is an amenable number.
30223901 is a deficient number, since it is larger than the sum of its proper divisors (451171).
30223901 is an equidigital number, since it uses as much as digits as its factorization.
30223901 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 451170.
The product of its (nonzero) digits is 324, while the sum is 20.
The square root of 30223901 is about 5497.6268516515. The cubic root of 30223901 is about 311.4943492848.
The spelling of 30223901 in words is "thirty million, two hundred twenty-three thousand, nine hundred one".
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