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135791244690 = 23521383211681
BaseRepresentation
bin111111001110111001…
…0011111010110010010
3110222111112011221211220
41332131302133112102
54211100024312230
6142214233345510
712545014351443
oct1763562372622
9428445157756
10135791244690
1152652687a72
1222398268296
13ca6093c13a
1468026972ca
1537eb4b2d10
hex1f9dc9f592

135791244690 has 32 divisors (see below), whose sum is σ = 325915767936. Its totient is φ = 36209134080.

The previous prime is 135791244679. The next prime is 135791244707. The reversal of 135791244690 is 96442197531.

It is a happy number.

It is a super-2 number, since 2×1357912446902 (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 535650 + ... + 747330.

It is an arithmetic number, because the mean of its divisors is an integer number (10184867748).

Almost surely, 2135791244690 is an apocalyptic number.

135791244690 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

135791244690 is an abundant number, since it is smaller than the sum of its proper divisors (190124523246).

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

135791244690 is a wasteful number, since it uses less digits than its factorization.

135791244690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 233074.

The product of its (nonzero) digits is 1632960, while the sum is 51.

The spelling of 135791244690 in words is "one hundred thirty-five billion, seven hundred ninety-one million, two hundred forty-four thousand, six hundred ninety".

Divisors: 1 2 3 5 6 10 15 30 21383 42766 64149 106915 128298 211681 213830 320745 423362 635043 641490 1058405 1270086 2116810 3175215 6350430 4526374823 9052749646 13579124469 22631874115 27158248938 45263748230 67895622345 135791244690