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25130424 = 2331195191
BaseRepresentation
bin101111111011…
…1010110111000
31202021202110110
41133313112320
522413133144
62254344320
7423414354
oct137672670
952252413
1025130424
1113204950
1284bb0a0
13528b697
1434a2464
1523160b9
hex17f75b8

25130424 has 32 divisors (see below), whose sum is σ = 68538240. Its totient is φ = 7615200.

The previous prime is 25130419. The next prime is 25130431. The reversal of 25130424 is 42403152.

It is a self number, because there is not a number n which added to its sum of digits gives 25130424.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 47332 + ... + 47859.

It is an arithmetic number, because the mean of its divisors is an integer number (2141820).

Almost surely, 225130424 is an apocalyptic number.

25130424 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

25130424 is an abundant number, since it is smaller than the sum of its proper divisors (43407816).

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

25130424 is a wasteful number, since it uses less digits than its factorization.

25130424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95211 (or 95207 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 25130424 is about 5013.0254338074. The cubic root of 25130424 is about 292.9093749164.

Adding to 25130424 its reverse (42403152), we get a palindrome (67533576).

The spelling of 25130424 in words is "twenty-five million, one hundred thirty thousand, four hundred twenty-four".

Divisors: 1 2 3 4 6 8 11 12 22 24 33 44 66 88 132 264 95191 190382 285573 380764 571146 761528 1047101 1142292 2094202 2284584 3141303 4188404 6282606 8376808 12565212 25130424