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89302081 = 11167173281
BaseRepresentation
bin1010101001010…
…10010001000001
320020001000102111
411110222101001
5140330131311
612510015321
72133024631
oct524522101
9206030374
1089302081
1146454a80
1225aa7541
131566938b
14bc086c1
157c8ed21
hex552a441

89302081 has 16 divisors (see below), whose sum is σ = 98921088. Its totient is φ = 79945600.

The previous prime is 89302069. The next prime is 89302091. The reversal of 89302081 is 18020398.

It is a cyclic number.

It is not a de Polignac number, because 89302081 - 211 = 89300033 is a prime.

It is a super-2 number, since 2×893020812 = 15949723341861122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (89302001) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 317661 + ... + 317941.

It is an arithmetic number, because the mean of its divisors is an integer number (6182568).

Almost surely, 289302081 is an apocalyptic number.

It is an amenable number.

89302081 is a deficient number, since it is larger than the sum of its proper divisors (9619007).

89302081 is a wasteful number, since it uses less digits than its factorization.

89302081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 632.

The product of its (nonzero) digits is 3456, while the sum is 31.

The square root of 89302081 is about 9449.9778306618. The cubic root of 89302081 is about 446.9790757054.

It can be divided in two parts, 8930 and 2081, that added together give a palindrome (11011).

The spelling of 89302081 in words is "eighty-nine million, three hundred two thousand, eighty-one".

Divisors: 1 11 167 173 281 1837 1903 3091 28891 46927 48613 317801 516197 534743 8118371 89302081