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89104081 = 118100371
BaseRepresentation
bin1010100111110…
…01111011010001
320012122221211011
411103321323101
5140302312311
612501450521
72131241443
oct523717321
9205587734
1089104081
114632a240
1225a10a41
13155ca211
14bb96493
157c51321
hex54f9ed1

89104081 has 4 divisors (see below), whose sum is σ = 97204464. Its totient is φ = 81003700.

The previous prime is 89104073. The next prime is 89104087. The reversal of 89104081 is 18040198.

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 89104081 - 23 = 89104073 is a prime.

It is a super-2 number, since 2×891040812 = 15879074501709122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (89104087) 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, 4050175 + ... + 4050196.

It is an arithmetic number, because the mean of its divisors is an integer number (24301116).

Almost surely, 289104081 is an apocalyptic number.

It is an amenable number.

89104081 is a deficient number, since it is larger than the sum of its proper divisors (8100383).

89104081 is a wasteful number, since it uses less digits than its factorization.

89104081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8100382.

The product of its (nonzero) digits is 2304, while the sum is 31.

The square root of 89104081 is about 9439.4958022132. The cubic root of 89104081 is about 446.6484848791.

The spelling of 89104081 in words is "eighty-nine million, one hundred four thousand, eighty-one".

Divisors: 1 11 8100371 89104081