Search a number
-
+
20385959594 = 27111327736761
BaseRepresentation
bin10010111111000110…
…010000111010101010
31221121201210001021112
4102333012100322222
5313222301201334
613210513510322
71321116540350
oct227706207252
957551701245
1020385959594
1187113851a0
123b4b2723a2
131bcb6415b0
14db56737d0
157e4aa94ce
hex4bf190eaa

20385959594 has 64 divisors (see below), whose sum is σ = 41206378752. Its totient is φ = 7304947200.

The previous prime is 20385959549. The next prime is 20385959603. The reversal of 20385959594 is 49595958302.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 536174 + ... + 572934.

It is an arithmetic number, because the mean of its divisors is an integer number (643849668).

Almost surely, 220385959594 is an apocalyptic number.

20385959594 is an abundant number, since it is smaller than the sum of its proper divisors (20820419158).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20385959594 is a wasteful number, since it uses less digits than its factorization.

20385959594 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37071.

The product of its (nonzero) digits is 17496000, while the sum is 59.

It can be divided in two parts, 20385 and 959594, that added together give a palindrome (979979).

The spelling of 20385959594 in words is "twenty billion, three hundred eighty-five million, nine hundred fifty-nine thousand, five hundred ninety-four".

Divisors: 1 2 7 11 13 14 22 26 77 91 143 154 182 277 286 554 1001 1939 2002 3047 3601 3878 6094 7202 21329 25207 36761 39611 42658 50414 73522 79222 257327 277277 404371 477893 514654 554554 808742 955786 2830597 3345251 5256823 5661194 6690502 10182797 10513646 20365594 36797761 71279579 73595522 112010767 132376361 142559158 224021534 264752722 784075369 926634527 1456139971 1568150738 1853269054 2912279942 10192979797 20385959594