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25082089 = 175692593
BaseRepresentation
bin101111110101…
…1100011101001
31202012022011021
41133223203221
522410111324
62253332441
7423123424
oct137534351
952168137
1025082089
11131815aa
128497121
135272696
14348c9bb
152306ae4
hex17eb8e9

25082089 has 8 divisors (see below), whose sum is σ = 26614440. Its totient is φ = 23556096.

The previous prime is 25082081. The next prime is 25082093. The reversal of 25082089 is 98028052.

It can be written as a sum of positive squares in 4 ways, for example, as 3968064 + 21114025 = 1992^2 + 4595^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 25082089 - 23 = 25082081 is a prime.

It is a super-2 number, since 2×250820892 = 1258222377207842, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25082081) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8377 + ... + 10969.

It is an arithmetic number, because the mean of its divisors is an integer number (3326805).

Almost surely, 225082089 is an apocalyptic number.

It is an amenable number.

25082089 is a deficient number, since it is larger than the sum of its proper divisors (1532351).

25082089 is a wasteful number, since it uses less digits than its factorization.

25082089 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3179.

The product of its (nonzero) digits is 11520, while the sum is 34.

The square root of 25082089 is about 5008.2021724367. The cubic root of 25082089 is about 292.7214637586.

The spelling of 25082089 in words is "twenty-five million, eighty-two thousand, eighty-nine".

Divisors: 1 17 569 2593 9673 44081 1475417 25082089