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89343709 = 7213210789
BaseRepresentation
bin1010101001101…
…00011011011101
320020010010112021
411110310123131
5140332444314
612510540141
72133260200
oct524643335
9206103467
1089343709
1146483284
1225b07651
1315682300
14bc19937
157c9c324
hex55346dd

89343709 has 18 divisors (see below), whose sum is σ = 112550490. Its totient is φ = 70682976.

The previous prime is 89343689. The next prime is 89343713. The reversal of 89343709 is 90734398.

It can be written as a sum of positive squares in 3 ways, for example, as 41209 + 89302500 = 203^2 + 9450^2 .

It is not a de Polignac number, because 89343709 - 211 = 89341661 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89343739) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 2887 + ... + 13675.

It is an arithmetic number, because the mean of its divisors is an integer number (6252805).

Almost surely, 289343709 is an apocalyptic number.

It is an amenable number.

89343709 is a deficient number, since it is larger than the sum of its proper divisors (23206781).

89343709 is a wasteful number, since it uses less digits than its factorization.

89343709 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10829 (or 10809 counting only the distinct ones).

The product of its (nonzero) digits is 163296, while the sum is 43.

The square root of 89343709 is about 9452.1801188932. The cubic root of 89343709 is about 447.0485177398.

The spelling of 89343709 in words is "eighty-nine million, three hundred forty-three thousand, seven hundred nine".

Divisors: 1 7 13 49 91 169 637 1183 8281 10789 75523 140257 528661 981799 1823341 6872593 12763387 89343709