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136886353 = 229597757
BaseRepresentation
bin10000010100010…
…11100001010001
3100112120112202221
420022023201101
5240020330403
621325541041
73251341402
oct1012134121
9315515687
10136886353
11702a581a
1239a14781
132248a056
14142739a9
15c03ddbd
hex828b851

136886353 has 4 divisors (see below), whose sum is σ = 137484340. Its totient is φ = 136288368.

The previous prime is 136886287. The next prime is 136886369. The reversal of 136886353 is 353688631.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 353688631 = 438225317.

It can be written as a sum of positive squares in 2 ways, for example, as 120297024 + 16589329 = 10968^2 + 4073^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-136886353 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (136886383) 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, 298650 + ... + 299107.

It is an arithmetic number, because the mean of its divisors is an integer number (34371085).

Almost surely, 2136886353 is an apocalyptic number.

It is an amenable number.

136886353 is a deficient number, since it is larger than the sum of its proper divisors (597987).

136886353 is an equidigital number, since it uses as much as digits as its factorization.

136886353 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 597986.

The product of its digits is 311040, while the sum is 43.

The square root of 136886353 is about 11699.8441442611. The cubic root of 136886353 is about 515.3710876841.

The spelling of 136886353 in words is "one hundred thirty-six million, eight hundred eighty-six thousand, three hundred fifty-three".

Divisors: 1 229 597757 136886353