Search a number
-
+
136243024 = 2410978121
BaseRepresentation
bin10000001111011…
…10011101010000
3100111100212021221
420013232131100
5234334234044
621304054424
73243021661
oct1007563520
9314325257
10136243024
116a9a6445
1239764414
13222c3298
1414147368
15be63484
hex81ee750

136243024 has 20 divisors (see below), whose sum is σ = 266396020. Its totient is φ = 67495680.

The previous prime is 136243021. The next prime is 136243043. The reversal of 136243024 is 420342631.

It can be written as a sum of positive squares in 2 ways, for example, as 85377600 + 50865424 = 9240^2 + 7132^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 136243024.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136243021) 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 3 ways as a sum of consecutive naturals, for example, 37317 + ... + 40804.

It is an arithmetic number, because the mean of its divisors is an integer number (13319801).

Almost surely, 2136243024 is an apocalyptic number.

It is an amenable number.

136243024 is a deficient number, since it is larger than the sum of its proper divisors (130152996).

136243024 is a wasteful number, since it uses less digits than its factorization.

136243024 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78238 (or 78232 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 25.

The square root of 136243024 is about 11672.3187070950. The cubic root of 136243024 is about 514.5624511202.

Adding to 136243024 its reverse (420342631), we get a palindrome (556585655).

The spelling of 136243024 in words is "one hundred thirty-six million, two hundred forty-three thousand, twenty-four".

Divisors: 1 2 4 8 16 109 218 436 872 1744 78121 156242 312484 624968 1249936 8515189 17030378 34060756 68121512 136243024