Search a number
-
+
308791719142 = 2891938988523
BaseRepresentation
bin1000111111001010110…
…10111011010011100110
31002112001020002122010121
410133211122323103212
520024401140003032
6353505034112154
731211101206514
oct4374532732346
91075036078117
10308791719142
11109a59969a95
124ba1987b65a
13231713b569a
1410d34a1b4b4
158074447a97
hex47e56bb4e6

308791719142 has 16 divisors (see below), whose sum is σ = 470818887120. Its totient is φ = 151870067712.

The previous prime is 308791719121. The next prime is 308791719167. The reversal of 308791719142 is 241917197803.

It is a happy number.

It is a super-3 number, since 3×3087917191423 (a number of 35 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 308791719142.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 4459908 + ... + 4528615.

It is an arithmetic number, because the mean of its divisors is an integer number (29426180445).

Almost surely, 2308791719142 is an apocalyptic number.

308791719142 is a deficient number, since it is larger than the sum of its proper divisors (162027167978).

308791719142 is a wasteful number, since it uses less digits than its factorization.

308791719142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8988807.

The product of its (nonzero) digits is 762048, while the sum is 52.

The spelling of 308791719142 in words is "three hundred eight billion, seven hundred ninety-one million, seven hundred nineteen thousand, one hundred forty-two".

Divisors: 1 2 89 178 193 386 17177 34354 8988523 17977046 799978547 1599957094 1734784939 3469569878 154395859571 308791719142