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89133793 = 721819057
BaseRepresentation
bin1010101000000…
…01001011100001
320012201110120121
411110001023201
5140304240133
612502240241
72131424200
oct524011341
9205643517
1089133793
114634a5a1
1225a26081
131560a8b8
14bba3237
157c5a02d
hex55012e1

89133793 has 6 divisors (see below), whose sum is σ = 103686306. Its totient is φ = 76400352.

The previous prime is 89133739. The next prime is 89133829. The reversal of 89133793 is 39733198.

It can be written as a sum of positive squares in only one way, i.e., 54641664 + 34492129 = 7392^2 + 5873^2 .

It is not a de Polignac number, because 89133793 - 221 = 87036641 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (89133293) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 909480 + ... + 909577.

It is an arithmetic number, because the mean of its divisors is an integer number (17281051).

Almost surely, 289133793 is an apocalyptic number.

It is an amenable number.

89133793 is a deficient number, since it is larger than the sum of its proper divisors (14552513).

89133793 is a wasteful number, since it uses less digits than its factorization.

89133793 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1819071 (or 1819064 counting only the distinct ones).

The product of its digits is 122472, while the sum is 43.

The square root of 89133793 is about 9441.0694839091. The cubic root of 89133793 is about 446.6981247491.

The spelling of 89133793 in words is "eighty-nine million, one hundred thirty-three thousand, seven hundred ninety-three".

Divisors: 1 7 49 1819057 12733399 89133793