Base | Representation |
---|---|
bin | 111010001000… |
… | …1101001001111 |
3 | 2010100121001000 |
4 | 1310101221033 |
5 | 30300342400 |
6 | 3005151343 |
7 | 520040550 |
oct | 164215117 |
9 | 63317030 |
10 | 30480975 |
11 | 16229898 |
12 | a25b553 |
13 | 6412ba5 |
14 | 4096327 |
15 | 2a21600 |
hex | 1d11a4f |
30480975 has 48 divisors (see below), whose sum is σ = 64003840. Its totient is φ = 13932000.
The previous prime is 30480899. The next prime is 30480977. The reversal of 30480975 is 57908403.
It is not a de Polignac number, because 30480975 - 210 = 30479951 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30480977) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1500 + ... + 7950.
Almost surely, 230480975 is an apocalyptic number.
30480975 is a gapful number since it is divisible by the number (35) formed by its first and last digit.
30480975 is an abundant number, since it is smaller than the sum of its proper divisors (33522865).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30480975 is a wasteful number, since it uses less digits than its factorization.
30480975 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 6477 (or 6466 counting only the distinct ones).
The product of its (nonzero) digits is 30240, while the sum is 36.
The square root of 30480975 is about 5520.9577973392. The cubic root of 30480975 is about 312.3750113491.
The spelling of 30480975 in words is "thirty million, four hundred eighty thousand, nine hundred seventy-five".
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