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89261069 = 194697951
BaseRepresentation
bin1010101001000…
…00010000001101
320012221221011112
411110200100031
5140322323234
612505101405
72132464232
oct524402015
9205857145
1089261069
1146427187
1225a87865
1315653801
14bbd7789
157c82ace
hex552040d

89261069 has 4 divisors (see below), whose sum is σ = 93959040. Its totient is φ = 84563100.

The previous prime is 89261017. The next prime is 89261071. The reversal of 89261069 is 96016298.

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 a de Polignac number, because none of the positive numbers 2k-89261069 is a prime.

It is a super-2 number, since 2×892610692 = 15935076878045522, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89261009) 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, 2348957 + ... + 2348994.

It is an arithmetic number, because the mean of its divisors is an integer number (23489760).

Almost surely, 289261069 is an apocalyptic number.

It is an amenable number.

89261069 is a deficient number, since it is larger than the sum of its proper divisors (4697971).

89261069 is a wasteful number, since it uses less digits than its factorization.

89261069 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4697970.

The product of its (nonzero) digits is 46656, while the sum is 41.

The square root of 89261069 is about 9447.8076292863. The cubic root of 89261069 is about 446.9106401490.

The spelling of 89261069 in words is "eighty-nine million, two hundred sixty-one thousand, sixty-nine".

Divisors: 1 19 4697951 89261069