Base | Representation |
---|---|
bin | 111001100110… |
… | …1110011111010 |
3 | 2002211110220110 |
4 | 1303031303322 |
5 | 30213000010 |
6 | 2555205150 |
7 | 514502526 |
oct | 163156372 |
9 | 62743813 |
10 | 30203130 |
11 | 1605a071 |
12 | a1467b6 |
13 | 6346599 |
14 | 4022d86 |
15 | 29b9120 |
hex | 1ccdcfa |
30203130 has 32 divisors (see below), whose sum is σ = 72679104. Its totient is φ = 8032896.
The previous prime is 30203099. The next prime is 30203153. The reversal of 30203130 is 3130203.
It is a happy number.
It is an unprimeable number.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12609 + ... + 14811.
It is an arithmetic number, because the mean of its divisors is an integer number (2271222).
Almost surely, 230203130 is an apocalyptic number.
30203130 is a gapful number since it is divisible by the number (30) formed by its first and last digit.
30203130 is an abundant number, since it is smaller than the sum of its proper divisors (42475974).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30203130 is a wasteful number, since it uses less digits than its factorization.
30203130 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2670.
The product of its (nonzero) digits is 54, while the sum is 12.
The square root of 30203130 is about 5495.7374391432. The cubic root of 30203130 is about 311.4229760599.
Adding to 30203130 its reverse (3130203), we get a palindrome (33333333).
The spelling of 30203130 in words is "thirty million, two hundred three thousand, one hundred thirty".
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