Base | Representation |
---|---|
bin | 111001101100… |
… | …0000010011110 |
3 | 2002220121101000 |
4 | 1303120002132 |
5 | 30220320042 |
6 | 3000131130 |
7 | 515035623 |
oct | 163300236 |
9 | 62817330 |
10 | 30245022 |
11 | 16088595 |
12 | a166aa6 |
13 | 635c682 |
14 | 403434a |
15 | 29c674c |
hex | 1cd809e |
30245022 has 16 divisors (see below), whose sum is σ = 67211280. Its totient is φ = 10081656.
The previous prime is 30245011. The next prime is 30245027. The reversal of 30245022 is 22054203.
It is a super-2 number, since 2×302450222 = 1829522711560968, which contains 22 as substring.
It is a Harshad number since it is a multiple of its sum of digits (18).
It is a junction number, because it is equal to n+sod(n) for n = 30244986 and 30245004.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30245027) 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, 279993 + ... + 280100.
It is an arithmetic number, because the mean of its divisors is an integer number (4200705).
Almost surely, 230245022 is an apocalyptic number.
30245022 is an abundant number, since it is smaller than the sum of its proper divisors (36966258).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30245022 is a wasteful number, since it uses less digits than its factorization.
30245022 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 560104 (or 560098 counting only the distinct ones).
The product of its (nonzero) digits is 480, while the sum is 18.
The square root of 30245022 is about 5499.5474359260. The cubic root of 30245022 is about 311.5668916547.
Adding to 30245022 its reverse (22054203), we get a palindrome (52299225).
The spelling of 30245022 in words is "thirty million, two hundred forty-five thousand, twenty-two".
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