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30026525 = 521201061
BaseRepresentation
bin111001010001…
…0101100011101
32002111111122112
41302202230131
530141322100
62551323405
7513135614
oct162425435
962444575
1030026525
1115a49411
12a080565
1362b4099
143db887b
152981b35
hex1ca2b1d

30026525 has 6 divisors (see below), whose sum is σ = 37232922. Its totient is φ = 24021200.

The previous prime is 30026509. The next prime is 30026527. The reversal of 30026525 is 52562003.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 9132484 + 20894041 = 3022^2 + 4571^2 .

It is not a de Polignac number, because 30026525 - 24 = 30026509 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 30026525.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30026527) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 600506 + ... + 600555.

It is an arithmetic number, because the mean of its divisors is an integer number (6205487).

Almost surely, 230026525 is an apocalyptic number.

It is an amenable number.

30026525 is a deficient number, since it is larger than the sum of its proper divisors (7206397).

30026525 is a wasteful number, since it uses less digits than its factorization.

30026525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1201071 (or 1201066 counting only the distinct ones).

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

The square root of 30026525 is about 5479.6464301997. The cubic root of 30026525 is about 310.8148006658.

Adding to 30026525 its reverse (52562003), we get a palindrome (82588528).

The spelling of 30026525 in words is "thirty million, twenty-six thousand, five hundred twenty-five".

Divisors: 1 5 25 1201061 6005305 30026525