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89254681 = 842910589
BaseRepresentation
bin1010101000111…
…10101100011001
320012221121101221
411110132230121
5140322122211
612505012041
72132436505
oct524365431
9205847357
1089254681
11464223aa
1225a84021
1315650929
14bbd5305
157c80c71
hex551eb19

89254681 has 4 divisors (see below), whose sum is σ = 89273700. Its totient is φ = 89235664.

The previous prime is 89254667. The next prime is 89254687. The reversal of 89254681 is 18645298.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 13286025 + 75968656 = 3645^2 + 8716^2 .

It is a cyclic number.

It is not a de Polignac number, because 89254681 - 27 = 89254553 is a prime.

It is a super-2 number, since 2×892546812 = 15932796160823522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (89254687) 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, 3135 + ... + 13723.

It is an arithmetic number, because the mean of its divisors is an integer number (22318425).

Almost surely, 289254681 is an apocalyptic number.

It is an amenable number.

89254681 is a deficient number, since it is larger than the sum of its proper divisors (19019).

89254681 is a wasteful number, since it uses less digits than its factorization.

89254681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19018.

The product of its digits is 138240, while the sum is 43.

The square root of 89254681 is about 9447.4695553889. The cubic root of 89254681 is about 446.8999787886.

The spelling of 89254681 in words is "eighty-nine million, two hundred fifty-four thousand, six hundred eighty-one".

Divisors: 1 8429 10589 89254681