Search a number
-
+
20013061404050 = 252111310092774063
BaseRepresentation
bin1001000110011101001110…
…11010100111010110010010
32121212020012122210120122022
410203032213122213112102
510110343222204412200
6110321512401211442
74133616214102031
oct443164732472622
977766178716568
1020013061404050
116416545472240
1222b27b9930b82
13b222ba3047a0
144d28ccc0c718
1524a8bb8b6885
hex1233a76a7592

20013061404050 has 96 divisors (see below), whose sum is σ = 43775395695360. Its totient is φ = 6711010790400.

The previous prime is 20013061403941. The next prime is 20013061404067. The reversal of 20013061404050 is 5040416031002.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 5827319 + ... + 8601381.

It is an arithmetic number, because the mean of its divisors is an integer number (455993705160).

Almost surely, 220013061404050 is an apocalyptic number.

20013061404050 is an abundant number, since it is smaller than the sum of its proper divisors (23762334291310).

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

20013061404050 is a wasteful number, since it uses less digits than its factorization.

20013061404050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2775108 (or 2775103 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 26.

Adding to 20013061404050 its reverse (5040416031002), we get a palindrome (25053477435052).

The spelling of 20013061404050 in words is "twenty trillion, thirteen billion, sixty-one million, four hundred four thousand, fifty".

Divisors: 1 2 5 10 11 13 22 25 26 50 55 65 110 130 143 275 286 325 550 650 715 1009 1430 2018 3575 5045 7150 10090 11099 13117 22198 25225 26234 50450 55495 65585 110990 131170 144287 277475 288574 327925 554950 655850 721435 1442870 2774063 3607175 5548126 7214350 13870315 27740630 30514693 36062819 61029386 69351575 72125638 138703150 152573465 180314095 305146930 360628190 396691009 762867325 793382018 901570475 1525734650 1803140950 1983455045 2799029567 3966910090 5598059134 9917275225 13995147835 19834550450 27990295670 30789325237 36387384371 61578650474 69975739175 72774768742 139951478350 153946626185 181936921855 307893252370 363873843710 400261228081 769733130925 800522456162 909684609275 1539466261850 1819369218550 2001306140405 4002612280810 10006530702025 20013061404050