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135824147 = 791719293
BaseRepresentation
bin10000001100010…
…00001100010011
3100110120120200222
420012020030103
5234232333042
621251103255
73236325524
oct1006101423
9313516628
10135824147
116a73a768
12395a1b2b
13221a7724
141407884b
15bdce2d2
hex8188313

135824147 has 4 divisors (see below), whose sum is σ = 137543520. Its totient is φ = 134104776.

The previous prime is 135824099. The next prime is 135824149. The reversal of 135824147 is 741428531.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 741428531 = 1743613443.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-135824147 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (135824149) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 859568 + ... + 859725.

It is an arithmetic number, because the mean of its divisors is an integer number (34385880).

Almost surely, 2135824147 is an apocalyptic number.

135824147 is a deficient number, since it is larger than the sum of its proper divisors (1719373).

135824147 is an equidigital number, since it uses as much as digits as its factorization.

135824147 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1719372.

The product of its digits is 26880, while the sum is 35.

The square root of 135824147 is about 11654.3617156840. The cubic root of 135824147 is about 514.0345717535.

The spelling of 135824147 in words is "one hundred thirty-five million, eight hundred twenty-four thousand, one hundred forty-seven".

Divisors: 1 79 1719293 135824147