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89238009 = 374249429
BaseRepresentation
bin1010101000110…
…10100111111001
320012220202112110
411110122213321
5140321104014
612504402533
72132340060
oct524324771
9205822473
1089238009
1146410923
1225a76449
1315646173
14bbcd1d7
157c7ad59
hex551a9f9

89238009 has 8 divisors (see below), whose sum is σ = 135981760. Its totient is φ = 50993136.

The previous prime is 89237923. The next prime is 89238011. The reversal of 89238009 is 90083298.

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

It is not a de Polignac number, because 89238009 - 27 = 89237881 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (89238089) 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, 2124694 + ... + 2124735.

It is an arithmetic number, because the mean of its divisors is an integer number (16997720).

Almost surely, 289238009 is an apocalyptic number.

It is an amenable number.

89238009 is a deficient number, since it is larger than the sum of its proper divisors (46743751).

89238009 is a wasteful number, since it uses less digits than its factorization.

89238009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4249439.

The product of its (nonzero) digits is 31104, while the sum is 39.

The square root of 89238009 is about 9446.5871615097. The cubic root of 89238009 is about 446.8721513764.

The spelling of 89238009 in words is "eighty-nine million, two hundred thirty-eight thousand, nine".

Divisors: 1 3 7 21 4249429 12748287 29746003 89238009