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136243026 = 2336737657
BaseRepresentation
bin10000001111011…
…10011101010010
3100111100212022000
420013232131102
5234334234101
621304054430
73243021663
oct1007563522
9314325260
10136243026
116a9a6447
1239764416
13222c329a
141414736a
15be63486
hex81ee752

136243026 has 32 divisors (see below), whose sum is σ = 307289280. Its totient is φ = 44735328.

The previous prime is 136243021. The next prime is 136243043. The reversal of 136243026 is 620342631.

136243026 is a `hidden beast` number, since 1 + 3 + 624 + 30 + 2 + 6 = 666.

136243026 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (136243021) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15211 + ... + 22446.

It is an arithmetic number, because the mean of its divisors is an integer number (9602790).

Almost surely, 2136243026 is an apocalyptic number.

136243026 is an abundant number, since it is smaller than the sum of its proper divisors (171046254).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

136243026 is a wasteful number, since it uses less digits than its factorization.

136243026 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37735 (or 37729 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 27.

The square root of 136243026 is about 11672.3187927678. The cubic root of 136243026 is about 514.5624536380.

Adding to 136243026 its reverse (620342631), we get a palindrome (756585657).

The spelling of 136243026 in words is "one hundred thirty-six million, two hundred forty-three thousand, twenty-six".

Divisors: 1 2 3 6 9 18 27 54 67 134 201 402 603 1206 1809 3618 37657 75314 112971 225942 338913 677826 1016739 2033478 2523019 5046038 7569057 15138114 22707171 45414342 68121513 136243026