Search a number
-
+
40805486863825 = 5223297930976021
BaseRepresentation
bin10010100011100110001001…
…00011001010010111010001
312100110222002112120022110211
421101303010203022113101
520322024114114120300
6222441440515124121
711411046001316215
oct1121630443122721
9170428075508424
1040805486863825
11120025675a0872
1246b0462ba3641
13199cc30208908
14a10dd3438945
154ab69ea864ba
hex251cc48ca5d1

40805486863825 has 48 divisors (see below), whose sum is σ = 55310784883200. Its totient is φ = 29766716179200.

The previous prime is 40805486863787. The next prime is 40805486863829. The reversal of 40805486863825 is 52836868450804.

It is not a de Polignac number, because 40805486863825 - 27 = 40805486863697 is a prime.

It is not an unprimeable number, because it can be changed into a prime (40805486863829) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 14170686 + ... + 16805335.

It is an arithmetic number, because the mean of its divisors is an integer number (1152308018400).

Almost surely, 240805486863825 is an apocalyptic number.

It is an amenable number.

40805486863825 is a deficient number, since it is larger than the sum of its proper divisors (14505298019375).

40805486863825 is a wasteful number, since it uses less digits than its factorization.

40805486863825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30976162 (or 30976157 counting only the distinct ones).

The product of its (nonzero) digits is 353894400, while the sum is 67.

The spelling of 40805486863825 in words is "forty trillion, eight hundred five billion, four hundred eighty-six million, eight hundred sixty-three thousand, eight hundred twenty-five".

Divisors: 1 5 23 25 29 79 115 145 395 575 667 725 1817 1975 2291 3335 9085 11455 16675 45425 52693 57275 263465 1317325 30976021 154880105 712448483 774400525 898304609 2447105659 3562242415 4491523045 12235528295 17811212075 20661006007 22457615225 56283430157 61177641475 70966064111 103305030035 281417150785 354830320555 516525150175 1407085753925 1632219474553 1774151602775 8161097372765 40805486863825