Base | Representation |
---|---|
bin | 111001100110… |
… | …1001010000110 |
3 | 2002211100020100 |
4 | 1303031022012 |
5 | 30212403304 |
6 | 2555144530 |
7 | 514461654 |
oct | 163151206 |
9 | 62740210 |
10 | 30200454 |
11 | 16058059 |
12 | a145146 |
13 | 63452bb |
14 | 4021dd4 |
15 | 29b8439 |
hex | 1ccd286 |
30200454 has 24 divisors (see below), whose sum is σ = 65540592. Its totient is φ = 10050480.
The previous prime is 30200441. The next prime is 30200501. The reversal of 30200454 is 45400203.
It is a happy number.
It is a super-2 number, since 2×302004542 = 1824134843612232, which contains 22 as substring.
It is a Harshad number since it is a multiple of its sum of digits (18).
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16047 + ... + 17829.
It is an arithmetic number, because the mean of its divisors is an integer number (2730858).
Almost surely, 230200454 is an apocalyptic number.
30200454 is an abundant number, since it is smaller than the sum of its proper divisors (35340138).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30200454 is a wasteful number, since it uses less digits than its factorization.
30200454 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2732 (or 2729 counting only the distinct ones).
The product of its (nonzero) digits is 480, while the sum is 18.
The square root of 30200454 is about 5495.4939723377. The cubic root of 30200454 is about 311.4137784205.
Adding to 30200454 its reverse (45400203), we get a palindrome (75600657).
The spelling of 30200454 in words is "thirty million, two hundred thousand, four hundred fifty-four".
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