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30258025 = 527434021
BaseRepresentation
bin111001101101…
…1001101101001
32002221021012121
41303123031221
530221224100
63000311241
7515121550
oct163331551
962837177
1030258025
1116097336
12a172521
136365575
144038d97
1529ca51a
hex1cdb369

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".

Divisors: 1 5 7 25 35 43 175 215 301 1075 1505 4021 7525 20105 28147 100525 140735 172903 703675 864515 1210321 4322575 6051605 30258025