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89336881 = 505917659
BaseRepresentation
bin1010101001100…
…10110000110001
320020002210011101
411110302300301
5140332240011
612510444401
72133231244
oct524626061
9206083141
1089336881
1146479137
1225b03701
131567c17a
14bc1725b
157c9a2c1
hex5532c31

89336881 has 4 divisors (see below), whose sum is σ = 89359600. Its totient is φ = 89314164.

The previous prime is 89336873. The next prime is 89336893. The reversal of 89336881 is 18863398.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 89336881 - 23 = 89336873 is a prime.

It is a super-2 number, since 2×893368812 = 15962156613616322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (89336831) 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, 3771 + ... + 13888.

It is an arithmetic number, because the mean of its divisors is an integer number (22339900).

Almost surely, 289336881 is an apocalyptic number.

It is an amenable number.

89336881 is a deficient number, since it is larger than the sum of its proper divisors (22719).

89336881 is a wasteful number, since it uses less digits than its factorization.

89336881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22718.

The product of its digits is 248832, while the sum is 46.

The square root of 89336881 is about 9451.8189254767. The cubic root of 89336881 is about 447.0371290437.

The spelling of 89336881 in words is "eighty-nine million, three hundred thirty-six thousand, eight hundred eighty-one".

Divisors: 1 5059 17659 89336881