Search a number
-
+
20486103875 = 532919728687
BaseRepresentation
bin10011000101000100…
…010010001101000011
31221212201012220101222
4103011010102031003
5313423420311000
613224452145255
71323444003236
oct230504221503
957781186358
1020486103875
118762965066
123b7890822b
131c16305973
14dc4aa141d
157ed78ba85
hex4c5112343

20486103875 has 32 divisors (see below), whose sum is σ = 26583448320. Its totient is φ = 15742876800.

The previous prime is 20486103857. The next prime is 20486103881. The reversal of 20486103875 is 57830168402.

It is not a de Polignac number, because 20486103875 - 28 = 20486103619 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 699782 + ... + 728468.

It is an arithmetic number, because the mean of its divisors is an integer number (830732760).

Almost surely, 220486103875 is an apocalyptic number.

20486103875 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

20486103875 is a deficient number, since it is larger than the sum of its proper divisors (6097344445).

20486103875 is a wasteful number, since it uses less digits than its factorization.

20486103875 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28928 (or 28918 counting only the distinct ones).

The product of its (nonzero) digits is 322560, while the sum is 44.

The spelling of 20486103875 in words is "twenty billion, four hundred eighty-six million, one hundred three thousand, eight hundred seventy-five".

Divisors: 1 5 25 29 125 145 197 725 985 3625 4925 5713 24625 28565 28687 142825 143435 714125 717175 831923 3585875 4159615 5651339 20798075 28256695 103990375 141283475 163888831 706417375 819444155 4097220775 20486103875