Search a number
-
+
5750751981 = 313163904633
BaseRepresentation
bin1010101101100010…
…11000001011101101
3112211210001110200010
411112301120023231
543234143030411
62350350323433
7262336404522
oct52661301355
915753043603
105750751981
112491171097
121145ab9579
1370855a730
143c7a8b149
15239d017a6
hex156c582ed

5750751981 has 16 divisors (see below), whose sum is σ = 8308158656. Its totient is φ = 3517209216.

The previous prime is 5750751971. The next prime is 5750752001. The reversal of 5750751981 is 1891570575.

It is a happy number.

It is not a de Polignac number, because 5750751981 - 214 = 5750735597 is a prime.

It is a super-2 number, since 2×57507519812 = 66142296693950848722, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 5750751981.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5750751971) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 445960 + ... + 458673.

It is an arithmetic number, because the mean of its divisors is an integer number (519259916).

Almost surely, 25750751981 is an apocalyptic number.

It is an amenable number.

5750751981 is a deficient number, since it is larger than the sum of its proper divisors (2557406675).

5750751981 is a wasteful number, since it uses less digits than its factorization.

5750751981 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 904812.

The product of its (nonzero) digits is 441000, while the sum is 48.

The square root of 5750751981 is about 75833.7126942892. The cubic root of 5750751981 is about 1791.6020301884.

The spelling of 5750751981 in words is "five billion, seven hundred fifty million, seven hundred fifty-one thousand, nine hundred eighty-one".

Divisors: 1 3 13 39 163 489 2119 6357 904633 2713899 11760229 35280687 147455179 442365537 1916917327 5750751981