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133204089 = 31632111291
BaseRepresentation
bin1111111000010…
…00100001111001
3100021122110122210
413330020201321
5233100012324
621115005333
73205134054
oct774104171
9307573583
10133204089
1169210227
1238739849
132179acb5
1413995a9b
15ba62d29
hex7f08879

133204089 has 16 divisors (see below), whose sum is σ = 179681024. Its totient is φ = 87771600.

The previous prime is 133204087. The next prime is 133204091. The reversal of 133204089 is 980402331.

It is an interprime number because it is at equal distance from previous prime (133204087) and next prime (133204091).

It is not a de Polignac number, because 133204089 - 21 = 133204087 is a prime.

It is a Smith number, since the sum of its digits (30) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (133204087) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 102534 + ... + 103824.

It is an arithmetic number, because the mean of its divisors is an integer number (11230064).

Almost surely, 2133204089 is an apocalyptic number.

It is an amenable number.

133204089 is a deficient number, since it is larger than the sum of its proper divisors (46476935).

133204089 is a wasteful number, since it uses less digits than its factorization.

133204089 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1668.

The product of its (nonzero) digits is 5184, while the sum is 30.

The square root of 133204089 is about 11541.4075831330. The cubic root of 133204089 is about 510.7078329787.

The spelling of 133204089 in words is "one hundred thirty-three million, two hundred four thousand, eighty-nine".

Divisors: 1 3 163 211 489 633 1291 3873 34393 103179 210433 272401 631299 817203 44401363 133204089