Base | Representation |
---|---|
bin | 111001101101… |
… | …1001101101001 |
3 | 2002221021012121 |
4 | 1303123031221 |
5 | 30221224100 |
6 | 3000311241 |
7 | 515121550 |
oct | 163331551 |
9 | 62837177 |
10 | 30258025 |
11 | 16097336 |
12 | a172521 |
13 | 6365575 |
14 | 4038d97 |
15 | 29ca51a |
hex | 1cdb369 |
30258025 has 24 divisors (see below), whose sum is σ = 43888064. Its totient is φ = 20260800.
The previous prime is 30258017. The next prime is 30258031. The reversal of 30258025 is 52085203.
It is not a de Polignac number, because 30258025 - 23 = 30258017 is a prime.
It is a Harshad number since it is a multiple of its sum of digits (25).
It is a Duffinian number.
It is an unprimeable number.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5515 + ... + 9535.
Almost surely, 230258025 is an apocalyptic number.
30258025 is a gapful number since it is divisible by the number (35) formed by its first and last digit.
It is an amenable number.
30258025 is a deficient number, since it is larger than the sum of its proper divisors (13630039).
30258025 is a wasteful number, since it uses less digits than its factorization.
30258025 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 4081 (or 4076 counting only the distinct ones).
The product of its (nonzero) digits is 2400, while the sum is 25.
The square root of 30258025 is about 5500.7294970758. The cubic root of 30258025 is about 311.6115350768.
The spelling of 30258025 in words is "thirty million, two hundred fifty-eight thousand, twenty-five".
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