Search a number
-
+
20335201420 = 22547103210031
BaseRepresentation
bin10010111100000100…
…101000110010001100
31221111012021021011011
4102330010220302030
5313121302421140
613201501535004
71316632234342
oct227404506214
957435237134
1020335201420
118695766896
123b36274464
131bc0c7c081
14daca1d992
157e03cecea
hex4bc128c8c

20335201420 has 48 divisors (see below), whose sum is σ = 44036149248. Its totient is φ = 7883686080.

The previous prime is 20335201417. The next prime is 20335201433. The reversal of 20335201420 is 2410253302.

It is a junction number, because it is equal to n+sod(n) for n = 20335201391 and 20335201400.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8196 + ... + 201835.

It is an arithmetic number, because the mean of its divisors is an integer number (917419776).

Almost surely, 220335201420 is an apocalyptic number.

20335201420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20335201420 is an abundant number, since it is smaller than the sum of its proper divisors (23700947828).

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

20335201420 is a wasteful number, since it uses less digits than its factorization.

20335201420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 210190 (or 210188 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 22.

Adding to 20335201420 its reverse (2410253302), we get a palindrome (22745454722).

The spelling of 20335201420 in words is "twenty billion, three hundred thirty-five million, two hundred one thousand, four hundred twenty".

Divisors: 1 2 4 5 10 20 47 94 103 188 206 235 412 470 515 940 1030 2060 4841 9682 19364 24205 48410 96820 210031 420062 840124 1050155 2100310 4200620 9871457 19742914 21633193 39485828 43266386 49357285 86532772 98714570 108165965 197429140 216331930 432663860 1016760071 2033520142 4067040284 5083800355 10167600710 20335201420