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135983390 = 2573918401
BaseRepresentation
bin10000001101011…
…11000100011110
3100110212200010212
420012233010132
5234302432030
621254332422
73240561014
oct1006570436
9313780125
10135983390
116a839374
123965a112
132223205a
14140ba8b4
15be11595
hex81af11e

135983390 has 16 divisors (see below), whose sum is σ = 245114640. Its totient is φ = 54316800.

The previous prime is 135983359. The next prime is 135983413. The reversal of 135983390 is 93389531.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 1811 + ... + 16590.

It is an arithmetic number, because the mean of its divisors is an integer number (15319665).

Almost surely, 2135983390 is an apocalyptic number.

135983390 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

135983390 is a deficient number, since it is larger than the sum of its proper divisors (109131250).

135983390 is a wasteful number, since it uses less digits than its factorization.

135983390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19147.

The product of its (nonzero) digits is 87480, while the sum is 41.

The square root of 135983390 is about 11661.1916200704. The cubic root of 135983390 is about 514.2353815012.

The spelling of 135983390 in words is "one hundred thirty-five million, nine hundred eighty-three thousand, three hundred ninety".

Divisors: 1 2 5 10 739 1478 3695 7390 18401 36802 92005 184010 13598339 27196678 67991695 135983390