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136230313 = 2915729921
BaseRepresentation
bin10000001111010…
…11010110101001
3100111100012212011
420013223112221
5234333332223
621303515521
73242636632
oct1007532651
9314305764
10136230313
116a99793a
1239758ba1
13222ba56b
1414142889
15be5e80d
hex81eb5a9

136230313 has 8 divisors (see below), whose sum is σ = 141830280. Its totient is φ = 130690560.

The previous prime is 136230301. The next prime is 136230343. The reversal of 136230313 is 313032631.

136230313 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 17572864 + 118657449 = 4192^2 + 10893^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 136230313 - 29 = 136229801 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (136230343) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10408 + ... + 19513.

It is an arithmetic number, because the mean of its divisors is an integer number (17728785).

Almost surely, 2136230313 is an apocalyptic number.

It is an amenable number.

136230313 is a deficient number, since it is larger than the sum of its proper divisors (5599967).

136230313 is a wasteful number, since it uses less digits than its factorization.

136230313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30107.

The product of its (nonzero) digits is 972, while the sum is 22.

The square root of 136230313 is about 11671.7742010373. The cubic root of 136230313 is about 514.5464483272.

Adding to 136230313 its reverse (313032631), we get a palindrome (449262944).

It can be divided in two parts, 13 and 6230313, that added together give a palindrome (6230326).

The spelling of 136230313 in words is "one hundred thirty-six million, two hundred thirty thousand, three hundred thirteen".

Divisors: 1 29 157 4553 29921 867709 4697597 136230313