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30256265 = 5131924499
BaseRepresentation
bin111001101101…
…0110010001001
32002221011210102
41303122302021
530221200030
63000255145
7515113454
oct163326211
962834712
1030256265
1116095a86
12a1714b5
136364820
14403849b
1529c9c45
hex1cdac89

30256265 has 16 divisors (see below), whose sum is σ = 41160000. Its totient is φ = 21166272.

The previous prime is 30256253. The next prime is 30256273. The reversal of 30256265 is 56265203.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 30256265 - 24 = 30256249 is a prime.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 11015 + ... + 13484.

It is an arithmetic number, because the mean of its divisors is an integer number (2572500).

Almost surely, 230256265 is an apocalyptic number.

It is an amenable number.

30256265 is a deficient number, since it is larger than the sum of its proper divisors (10903735).

30256265 is a wasteful number, since it uses less digits than its factorization.

30256265 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24536.

The product of its (nonzero) digits is 10800, while the sum is 29.

The square root of 30256265 is about 5500.5695159683. The cubic root of 30256265 is about 311.6054931872.

The spelling of 30256265 in words is "thirty million, two hundred fifty-six thousand, two hundred sixty-five".

Divisors: 1 5 13 19 65 95 247 1235 24499 122495 318487 465481 1592435 2327405 6051253 30256265