Base | Representation |
---|---|
bin | 111010000010… |
… | …0000101010000 |
3 | 2010020202211120 |
4 | 1310010011100 |
5 | 30242103144 |
6 | 3004042240 |
7 | 516416601 |
oct | 164040520 |
9 | 63222746 |
10 | 30425424 |
11 | 161a1087 |
12 | a233380 |
13 | 63c3813 |
14 | 407dda8 |
15 | 2a0ee19 |
hex | 1d04150 |
30425424 has 40 divisors (see below), whose sum is σ = 80432352. Its totient is φ = 9905280.
The previous prime is 30425419. The next prime is 30425429. The reversal of 30425424 is 42452403.
It is an interprime number because it is at equal distance from previous prime (30425419) and next prime (30425429).
It is a Harshad number since it is a multiple of its sum of digits (24).
It is a junction number, because it is equal to n+sod(n) for n = 30425394 and 30425403.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30425429) 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, 5307 + ... + 9434.
Almost surely, 230425424 is an apocalyptic number.
It is an amenable number.
30425424 is an abundant number, since it is smaller than the sum of its proper divisors (50006928).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30425424 is a wasteful number, since it uses less digits than its factorization.
30425424 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 14795 (or 14789 counting only the distinct ones).
The product of its (nonzero) digits is 3840, while the sum is 24.
The square root of 30425424 is about 5515.9245825156. The cubic root of 30425424 is about 312.1851301021.
Adding to 30425424 its reverse (42452403), we get a palindrome (72877827).
The spelling of 30425424 in words is "thirty million, four hundred twenty-five thousand, four hundred twenty-four".
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