Search a number
-
+
23943091215 = 3529128942701
BaseRepresentation
bin10110010011000111…
…101001010000001111
32021210122011001112010
4112103013221100033
5343013412404330
614555503312303
71505221626441
oct262307512017
967718131463
1023943091215
11a17728389a
1247825ab693
1323475923c4
141231c64491
15951eee3b0
hex5931e940f

23943091215 has 32 divisors (see below), whose sum is σ = 39661617600. Its totient is φ = 12319462400.

The previous prime is 23943091199. The next prime is 23943091217. The reversal of 23943091215 is 51219034932.

It is not a de Polignac number, because 23943091215 - 24 = 23943091199 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23943091217) 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 31 ways as a sum of consecutive naturals, for example, 539365 + ... + 582065.

It is an arithmetic number, because the mean of its divisors is an integer number (1239425550).

Almost surely, 223943091215 is an apocalyptic number.

23943091215 is a deficient number, since it is larger than the sum of its proper divisors (15718526385).

23943091215 is a wasteful number, since it uses less digits than its factorization.

23943091215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44027.

The product of its (nonzero) digits is 58320, while the sum is 39.

The spelling of 23943091215 in words is "twenty-three billion, nine hundred forty-three million, ninety-one thousand, two hundred fifteen".

Divisors: 1 3 5 15 29 87 145 435 1289 3867 6445 19335 37381 42701 112143 128103 186905 213505 560715 640515 1238329 3714987 6191645 18574935 55041589 165124767 275207945 825623835 1596206081 4788618243 7981030405 23943091215