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30527125 = 53244217
BaseRepresentation
bin111010001110…
…0111010010101
32010102221100021
41310130322111
530303332000
63010145141
7520322236
oct164347225
963387307
1030527125
1116260532
12a2821b1
13642abb5
1440a908d
152a3011a
hex1d1ce95

30527125 has 8 divisors (see below), whose sum is σ = 38098008. Its totient is φ = 24421600.

The previous prime is 30527113. The next prime is 30527153. The reversal of 30527125 is 52172503.

It can be written as a sum of positive squares in 4 ways, for example, as 133956 + 30393169 = 366^2 + 5513^2 .

It is not a de Polignac number, because 30527125 - 25 = 30527093 is a prime.

It is a hoax number, since the sum of its digits (25) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (25).

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 30527125.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 121984 + ... + 122233.

It is an arithmetic number, because the mean of its divisors is an integer number (4762251).

Almost surely, 230527125 is an apocalyptic number.

It is an amenable number.

30527125 is a deficient number, since it is larger than the sum of its proper divisors (7570883).

30527125 is an equidigital number, since it uses as much as digits as its factorization.

30527125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 244232 (or 244222 counting only the distinct ones).

The product of its (nonzero) digits is 2100, while the sum is 25.

The square root of 30527125 is about 5525.1357449388. The cubic root of 30527125 is about 312.5325832692.

Adding to 30527125 its reverse (52172503), we get a palindrome (82699628).

The spelling of 30527125 in words is "thirty million, five hundred twenty-seven thousand, one hundred twenty-five".

Divisors: 1 5 25 125 244217 1221085 6105425 30527125