Search a number
-
+
28993630703 = 293422923399
BaseRepresentation
bin11011000000001001…
…111011000111101111
32202211121122001020012
4123000021323013233
5433334332140303
621153002043435
72044326536402
oct330011730757
982747561205
1028993630703
111132916a974
125751aa957b
132970a37acb
14159091dd39
15b4a5da5d8
hex6c027b1ef

28993630703 has 8 divisors (see below), whose sum is σ = 29100708000. Its totient is φ = 28886609248.

The previous prime is 28993630691. The next prime is 28993630711. The reversal of 28993630703 is 30703639982.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 28993630703 - 218 = 28993368559 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28993630733) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1227398 + ... + 1250796.

It is an arithmetic number, because the mean of its divisors is an integer number (3637588500).

Almost surely, 228993630703 is an apocalyptic number.

28993630703 is a deficient number, since it is larger than the sum of its proper divisors (107077297).

28993630703 is a wasteful number, since it uses less digits than its factorization.

28993630703 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27921.

The product of its (nonzero) digits is 1469664, while the sum is 50.

The spelling of 28993630703 in words is "twenty-eight billion, nine hundred ninety-three million, six hundred thirty thousand, seven hundred three".

Divisors: 1 293 4229 23399 1239097 6855907 98954371 28993630703