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89962889 = 531697413
BaseRepresentation
bin1010101110010…
…11100110001001
320021021120212212
411113023212021
5141012303024
612532114505
72141446322
oct527134611
9207246785
1089962889
11468664a5
1226165a35
131583b0a3
14bd3b449
157d70a0e
hex55cb989

89962889 has 4 divisors (see below), whose sum is σ = 91660356. Its totient is φ = 88265424.

The previous prime is 89962877. The next prime is 89962903. The reversal of 89962889 is 98826998.

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 81360400 + 8602489 = 9020^2 + 2933^2 .

It is a cyclic number.

It is not a de Polignac number, because 89962889 - 220 = 88914313 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (89962819) 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, 848654 + ... + 848759.

It is an arithmetic number, because the mean of its divisors is an integer number (22915089).

Almost surely, 289962889 is an apocalyptic number.

It is an amenable number.

89962889 is a deficient number, since it is larger than the sum of its proper divisors (1697467).

89962889 is a wasteful number, since it uses less digits than its factorization.

89962889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1697466.

The product of its digits is 4478976, while the sum is 59.

The square root of 89962889 is about 9484.8768573978. The cubic root of 89962889 is about 448.0788701092.

The spelling of 89962889 in words is "eighty-nine million, nine hundred sixty-two thousand, eight hundred eighty-nine".

Divisors: 1 53 1697413 89962889