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30224525 = 522947887
BaseRepresentation
bin111001101001…
…1000010001101
32002212120020212
41303103002031
530214141100
62555452205
7514622102
oct163230215
962776225
1030224525
1116074151
12a157065
136353246
14402aaa9
1529c0635
hex1cd308d

30224525 has 24 divisors (see below), whose sum is σ = 39640320. Its totient is φ = 22823360.

The previous prime is 30224483. The next prime is 30224539. The reversal of 30224525 is 52542203.

It is not a de Polignac number, because 30224525 - 212 = 30220429 is a prime.

It is a super-2 number, since 2×302245252 = 1827043822951250, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 30224525.

It is a congruent 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, 33632 + ... + 34518.

It is an arithmetic number, because the mean of its divisors is an integer number (1651680).

Almost surely, 230224525 is an apocalyptic number.

It is an amenable number.

30224525 is a deficient number, since it is larger than the sum of its proper divisors (9415795).

30224525 is a wasteful number, since it uses less digits than its factorization.

30224525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 973 (or 968 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 23.

The square root of 30224525 is about 5497.6836031187. The cubic root of 30224525 is about 311.4964929650.

Adding to 30224525 its reverse (52542203), we get a palindrome (82766728).

The spelling of 30224525 in words is "thirty million, two hundred twenty-four thousand, five hundred twenty-five".

Divisors: 1 5 25 29 47 145 235 725 887 1175 1363 4435 6815 22175 25723 34075 41689 128615 208445 643075 1042225 1208981 6044905 30224525