Base | Representation |
---|---|
bin | 111001110000… |
… | …1111001101111 |
3 | 2002222122210100 |
4 | 1303201321233 |
5 | 30223113143 |
6 | 3001042143 |
7 | 515264460 |
oct | 163417157 |
9 | 62878710 |
10 | 30285423 |
11 | 16105983 |
12 | a186353 |
13 | 6374b8c |
14 | 4044d67 |
15 | 29d36d3 |
hex | 1ce1e6f |
30285423 has 24 divisors (see below), whose sum is σ = 50139648. Its totient is φ = 17255952.
The previous prime is 30285413. The next prime is 30285427. The reversal of 30285423 is 32458203.
It is not a de Polignac number, because 30285423 - 25 = 30285391 is a prime.
It is a super-3 number, since 3×302854233 (a number of 23 digits) contains 333 as substring.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30285427) by changing a digit.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 40390 + ... + 41132.
It is an arithmetic number, because the mean of its divisors is an integer number (2089152).
Almost surely, 230285423 is an apocalyptic number.
30285423 is a deficient number, since it is larger than the sum of its proper divisors (19854225).
30285423 is a wasteful number, since it uses less digits than its factorization.
30285423 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1403 (or 1400 counting only the distinct ones).
The product of its (nonzero) digits is 5760, while the sum is 27.
The square root of 30285423 is about 5503.2193305374. The cubic root of 30285423 is about 311.7055592492.
The spelling of 30285423 in words is "thirty million, two hundred eighty-five thousand, four hundred twenty-three".
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