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89227631 = 421921149
BaseRepresentation
bin1010101000110…
…00000101101111
320012220020022002
411110120011233
5140320241011
612504242515
72132264603
oct524300557
9205806262
1089227631
1146404049
1225a7043b
131564151c
14bbc9503
157c77c3b
hex551816f

89227631 has 4 divisors (see below), whose sum is σ = 89253000. Its totient is φ = 89202264.

The previous prime is 89227627. The next prime is 89227643. The reversal of 89227631 is 13672298.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13672298 = 26836149.

It is a cyclic number.

It is not a de Polignac number, because 89227631 - 22 = 89227627 is a prime.

It is a super-2 number, since 2×892276312 = 15923140267744322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89227601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6356 + ... + 14793.

It is an arithmetic number, because the mean of its divisors is an integer number (22313250).

Almost surely, 289227631 is an apocalyptic number.

89227631 is a deficient number, since it is larger than the sum of its proper divisors (25369).

89227631 is a wasteful number, since it uses less digits than its factorization.

89227631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25368.

The product of its digits is 36288, while the sum is 38.

The square root of 89227631 is about 9446.0378466318. The cubic root of 89227631 is about 446.8548275961.

The spelling of 89227631 in words is "eighty-nine million, two hundred twenty-seven thousand, six hundred thirty-one".

Divisors: 1 4219 21149 89227631