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25282998 = 232131031049
BaseRepresentation
bin110000001110…
…0100110110110
31202120111202100
41200130212312
522433023443
62301522530
7424621236
oct140344666
952514670
1025282998
11132a9544
128573446
135312c70
143501cc6
1523463d3
hex181c9b6

25282998 has 48 divisors (see below), whose sum is σ = 59623200. Its totient is φ = 7696512.

The previous prime is 25282993. The next prime is 25283017. The reversal of 25282998 is 89928252.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25282991) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 23578 + ... + 24626.

It is an arithmetic number, because the mean of its divisors is an integer number (1242150).

Almost surely, 225282998 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25282998, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29811600).

25282998 is an abundant number, since it is smaller than the sum of its proper divisors (34340202).

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

25282998 is a wasteful number, since it uses less digits than its factorization.

25282998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1173 (or 1170 counting only the distinct ones).

The product of its digits is 207360, while the sum is 45.

The square root of 25282998 is about 5028.2201622443. The cubic root of 25282998 is about 293.5009581988.

The spelling of 25282998 in words is "twenty-five million, two hundred eighty-two thousand, nine hundred ninety-eight".

Divisors: 1 2 3 6 9 13 18 26 39 78 103 117 206 234 309 618 927 1049 1339 1854 2098 2678 3147 4017 6294 8034 9441 12051 13637 18882 24102 27274 40911 81822 108047 122733 216094 245466 324141 648282 972423 1404611 1944846 2809222 4213833 8427666 12641499 25282998