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89884393 = 891009937
BaseRepresentation
bin1010101101110…
…00011011101001
320021010121012121
411112320123221
5141002300033
612530311241
72141001424
oct526703351
9207117177
1089884393
1146812525
1226128521
1315811441
14bd1a9bb
157d5762d
hex55b86e9

89884393 has 4 divisors (see below), whose sum is σ = 90894420. Its totient is φ = 88874368.

The previous prime is 89884363. The next prime is 89884441. The reversal of 89884393 is 39348898.

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 25371369 + 64513024 = 5037^2 + 8032^2 .

It is a cyclic number.

It is not a de Polignac number, because 89884393 - 221 = 87787241 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 89884393.

It is not an unprimeable number, because it can be changed into a prime (89884363) 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, 504880 + ... + 505057.

It is an arithmetic number, because the mean of its divisors is an integer number (22723605).

Almost surely, 289884393 is an apocalyptic number.

It is an amenable number.

89884393 is a deficient number, since it is larger than the sum of its proper divisors (1010027).

89884393 is a wasteful number, since it uses less digits than its factorization.

89884393 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1010026.

The product of its digits is 1492992, while the sum is 52.

The square root of 89884393 is about 9480.7379987003. The cubic root of 89884393 is about 447.9485103053.

The spelling of 89884393 in words is "eighty-nine million, eight hundred eighty-four thousand, three hundred ninety-three".

Divisors: 1 89 1009937 89884393