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30413525 = 528913669
BaseRepresentation
bin111010000000…
…1001011010101
32010020011111212
41310001023111
530241213100
63003511205
7516340112
oct164011325
963204455
1030413525
111619314a
12a228505
1363bb28c
144079909
152a0b635
hex1d012d5

30413525 has 12 divisors (see below), whose sum is σ = 38139300. Its totient is φ = 24055680.

The previous prime is 30413501. The next prime is 30413533. The reversal of 30413525 is 52531403.

It can be written as a sum of positive squares in 6 ways, for example, as 917764 + 29495761 = 958^2 + 5431^2 .

It is not a de Polignac number, because 30413525 - 28 = 30413269 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 30413525.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4610 + ... + 9059.

It is an arithmetic number, because the mean of its divisors is an integer number (3178275).

Almost surely, 230413525 is an apocalyptic number.

It is an amenable number.

30413525 is a deficient number, since it is larger than the sum of its proper divisors (7725775).

30413525 is a wasteful number, since it uses less digits than its factorization.

30413525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13768 (or 13763 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 23.

The square root of 30413525 is about 5514.8458727330. The cubic root of 30413525 is about 312.1444275718.

Adding to 30413525 its reverse (52531403), we get a palindrome (82944928).

The spelling of 30413525 in words is "thirty million, four hundred thirteen thousand, five hundred twenty-five".

Divisors: 1 5 25 89 445 2225 13669 68345 341725 1216541 6082705 30413525