Base | Representation |
---|---|
bin | 1010101011111… |
… | …01010000101001 |
3 | 20020200021202000 |
4 | 11111331100221 |
5 | 140422021100 |
6 | 12521201213 |
7 | 2135642004 |
oct | 525752051 |
9 | 206607660 |
10 | 89642025 |
11 | 46667420 |
12 | 26030209 |
13 | 15758025 |
14 | bc9653b |
15 | 7d0a900 |
hex | 557d429 |
89642025 has 48 divisors (see below), whose sum is σ = 179661120. Its totient is φ = 43459200.
The previous prime is 89642023. The next prime is 89642041. The reversal of 89642025 is 52024698.
It is a happy number.
89642025 is a `hidden beast` number, since 8 + 9 + 642 + 0 + 2 + 5 = 666.
It is not a de Polignac number, because 89642025 - 21 = 89642023 is a prime.
It is a super-2 number, since 2×896420252 = 16071385292201250, which contains 22 as substring.
It is not an unprimeable number, because it can be changed into a prime (89642023) by changing a digit.
It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1389 + ... + 13461.
It is an arithmetic number, because the mean of its divisors is an integer number (3742940).
Almost surely, 289642025 is an apocalyptic number.
It is an amenable number.
89642025 is an abundant number, since it is smaller than the sum of its proper divisors (90019095).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
89642025 is a wasteful number, since it uses less digits than its factorization.
89642025 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 12103 (or 12092 counting only the distinct ones).
The product of its (nonzero) digits is 34560, while the sum is 36.
The square root of 89642025 is about 9467.9472431990. The cubic root of 89642025 is about 447.5455255745.
The spelling of 89642025 in words is "eighty-nine million, six hundred forty-two thousand, twenty-five".
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