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135392018 = 297697897
BaseRepresentation
bin10000001000111…
…10101100010010
3100102202121221012
420010132230102
5234130021033
621233530522
73232545626
oct1004365422
9312677835
10135392018
116a475033
1239413a42
1322085b28
1413da5186
15bd46248
hex811eb12

135392018 has 8 divisors (see below), whose sum is σ = 205182012. Its totient is φ = 66998016.

The previous prime is 135391999. The next prime is 135392027. The reversal of 135392018 is 810293531.

It can be written as a sum of positive squares in 2 ways, for example, as 132319009 + 3073009 = 11503^2 + 1753^2 .

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

It is a super-2 number, since 2×1353920182 = 36661997076224648, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 348755 + ... + 349142.

Almost surely, 2135392018 is an apocalyptic number.

135392018 is a deficient number, since it is larger than the sum of its proper divisors (69789994).

135392018 is an equidigital number, since it uses as much as digits as its factorization.

135392018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 697996.

The product of its (nonzero) digits is 6480, while the sum is 32.

The square root of 135392018 is about 11635.8075783334. The cubic root of 135392018 is about 513.4888532929.

The spelling of 135392018 in words is "one hundred thirty-five million, three hundred ninety-two thousand, eighteen".

Divisors: 1 2 97 194 697897 1395794 67696009 135392018