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25109130 = 235836971
BaseRepresentation
bin101111111001…
…0001010001010
31202020200020210
41133302022022
522411443010
62254101550
7423265314
oct137621212
952220223
1025109130
111319a952
1284aa8b6
135281a97
1434987b4
15230eb20
hex17f228a

25109130 has 16 divisors (see below), whose sum is σ = 60261984. Its totient is φ = 6695760.

The previous prime is 25109113. The next prime is 25109141. The reversal of 25109130 is 3190152.

It is a junction number, because it is equal to n+sod(n) for n = 25109097 and 25109106.

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 7 ways as a sum of consecutive naturals, for example, 418456 + ... + 418515.

It is an arithmetic number, because the mean of its divisors is an integer number (3766374).

Almost surely, 225109130 is an apocalyptic number.

25109130 is an abundant number, since it is smaller than the sum of its proper divisors (35152854).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25109130 is a wasteful number, since it uses less digits than its factorization.

25109130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 836981.

The product of its (nonzero) digits is 270, while the sum is 21.

The square root of 25109130 is about 5010.9011165658. The cubic root of 25109130 is about 292.8266203140.

Adding to 25109130 its reverse (3190152), we get a palindrome (28299282).

The spelling of 25109130 in words is "twenty-five million, one hundred nine thousand, one hundred thirty".

Divisors: 1 2 3 5 6 10 15 30 836971 1673942 2510913 4184855 5021826 8369710 12554565 25109130