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8091089 = 71831373
BaseRepresentation
bin11110110111010111010001
3120020001212222
4132313113101
54032403324
6445230425
7125526116
oct36672721
916201788
108091089
114626a56
122862415
1318a3a36
14110890d
15a9c55e
hex7b75d1

8091089 has 8 divisors (see below), whose sum is σ = 8309952. Its totient is φ = 7875280.

The previous prime is 8091077. The next prime is 8091091. The reversal of 8091089 is 9801908.

It is a happy number.

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 8091089 - 216 = 8025553 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8091059) 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, 5207 + ... + 6579.

It is an arithmetic number, because the mean of its divisors is an integer number (1038744).

Almost surely, 28091089 is an apocalyptic number.

It is an amenable number.

8091089 is a deficient number, since it is larger than the sum of its proper divisors (218863).

8091089 is a wasteful number, since it uses less digits than its factorization.

8091089 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1527.

The product of its (nonzero) digits is 5184, while the sum is 35.

The square root of 8091089 is about 2844.4839602290. The cubic root of 8091089 is about 200.7562121125.

The spelling of 8091089 in words is "eight million, ninety-one thousand, eighty-nine".

Divisors: 1 71 83 1373 5893 97483 113959 8091089