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135579199 = 7171139321
BaseRepresentation
bin10000001010011…
…00011000111111
3100110010010200211
420011030120333
5234202013244
621241533251
73234255430
oct1005143077
9313103624
10135579199
116a592728
12394a4227
13221200a2
1414013487
15bd81934
hex814c63f

135579199 has 8 divisors (see below), whose sum is σ = 164062368. Its totient is φ = 109374720.

The previous prime is 135579187. The next prime is 135579217. The reversal of 135579199 is 991975531.

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

It is not a de Polignac number, because 135579199 - 215 = 135546431 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 (135579179) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 569542 + ... + 569779.

It is an arithmetic number, because the mean of its divisors is an integer number (20507796).

Almost surely, 2135579199 is an apocalyptic number.

135579199 is a deficient number, since it is larger than the sum of its proper divisors (28483169).

135579199 is a wasteful number, since it uses less digits than its factorization.

135579199 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1139345.

The product of its digits is 382725, while the sum is 49.

The square root of 135579199 is about 11643.8481182125. The cubic root of 135579199 is about 513.7253790471.

The spelling of 135579199 in words is "one hundred thirty-five million, five hundred seventy-nine thousand, one hundred ninety-nine".

Divisors: 1 7 17 119 1139321 7975247 19368457 135579199