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133216199 = 1779281353
BaseRepresentation
bin1111111000010…
…11011111000111
3100021200002021022
413330023133013
5233100404244
621115141355
73205214264
oct774133707
9307602238
10133216199
1169219336
123874485b
13217a366c
141399a26b
15ba666ee
hex7f0b7c7

133216199 has 16 divisors (see below), whose sum is σ = 143752320. Its totient is φ = 123002880.

The previous prime is 133216157. The next prime is 133216217. The reversal of 133216199 is 991612331.

It is a cyclic number.

It is not a de Polignac number, because 133216199 - 224 = 116438983 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133296199) 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, 377207 + ... + 377559.

It is an arithmetic number, because the mean of its divisors is an integer number (8984520).

Almost surely, 2133216199 is an apocalyptic number.

133216199 is a deficient number, since it is larger than the sum of its proper divisors (10536121).

133216199 is a wasteful number, since it uses less digits than its factorization.

133216199 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 730.

The product of its digits is 8748, while the sum is 35.

The square root of 133216199 is about 11541.9322039250. The cubic root of 133216199 is about 510.7233091914.

The spelling of 133216199 in words is "one hundred thirty-three million, two hundred sixteen thousand, one hundred ninety-nine".

Divisors: 1 17 79 281 353 1343 4777 6001 22199 27887 99193 377383 474079 1686281 7836247 133216199