Search a number
-
+
25285098 = 234214183
BaseRepresentation
bin110000001110…
…1000111101010
31202120121122010
41200131013222
522433110343
62301540350
7424630326
oct140350752
952517563
1025285098
1113300083
1285746b6
135313bc7
143502986
152346d33
hex181d1ea

25285098 has 8 divisors (see below), whose sum is σ = 50570208. Its totient is φ = 8428364.

The previous prime is 25285093. The next prime is 25285109. The reversal of 25285098 is 89058252.

It is a sphenic number, since it is the product of 3 distinct primes.

25285098 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (25285093) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2107086 + ... + 2107097.

It is an arithmetic number, because the mean of its divisors is an integer number (6321276).

Almost surely, 225285098 is an apocalyptic number.

25285098 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

25285098 is a wasteful number, since it uses less digits than its factorization.

25285098 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4214188.

The product of its (nonzero) digits is 57600, while the sum is 39.

The square root of 25285098 is about 5028.4289793135. The cubic root of 25285098 is about 293.5090840145.

It can be divided in two parts, 2528 and 5098, that added together give a triangular number (7626 = T123).

The spelling of 25285098 in words is "twenty-five million, two hundred eighty-five thousand, ninety-eight".

Divisors: 1 2 3 6 4214183 8428366 12642549 25285098