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89223391 = 372838521
BaseRepresentation
bin1010101000101…
…11000011011111
320012220000111001
411110113003133
5140320122031
612504211131
72132246335
oct524270337
9205800431
1089223391
1146400944
1225a69aa7
131563c60a
14bbc7b55
157c76861
hex55170df

89223391 has 8 divisors (see below), whose sum is σ = 91969424. Its totient is φ = 86495040.

The previous prime is 89223377. The next prime is 89223397. The reversal of 89223391 is 19332298.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 89223391 - 25 = 89223359 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (37).

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 89223391.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89223397) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6211 + ... + 14731.

It is an arithmetic number, because the mean of its divisors is an integer number (11496178).

Almost surely, 289223391 is an apocalyptic number.

89223391 is a deficient number, since it is larger than the sum of its proper divisors (2746033).

89223391 is a wasteful number, since it uses less digits than its factorization.

89223391 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8841.

The product of its digits is 23328, while the sum is 37.

The square root of 89223391 is about 9445.8134112420. The cubic root of 89223391 is about 446.8477494655.

The spelling of 89223391 in words is "eighty-nine million, two hundred twenty-three thousand, three hundred ninety-one".

Divisors: 1 37 283 8521 10471 315277 2411443 89223391