Search a number
-
+
2054305220 = 2251143217157
BaseRepresentation
bin111101001110010…
…0011010111000100
312022011112111222112
41322130203113010
513201400231340
6535502520152
7101623210022
oct17234432704
95264474875
102054305220
11964668a10
12493b96058
132697ac226
14156b93712
15c053d065
hex7a7235c4

2054305220 has 48 divisors (see below), whose sum is σ = 4815695808. Its totient is φ = 729644160.

The previous prime is 2054305199. The next prime is 2054305223. The reversal of 2054305220 is 225034502.

It is not an unprimeable number, because it can be changed into a prime (2054305223) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 99119 + ... + 118038.

It is an arithmetic number, because the mean of its divisors is an integer number (100326996).

Almost surely, 22054305220 is an apocalyptic number.

2054305220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2054305220 is an abundant number, since it is smaller than the sum of its proper divisors (2761390588).

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

2054305220 is a wasteful number, since it uses less digits than its factorization.

2054305220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 217220 (or 217218 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 23.

The square root of 2054305220 is about 45324.4439568761. The cubic root of 2054305220 is about 1271.2227502782. Note that the first 3 decimals are identical.

Adding to 2054305220 its reverse (225034502), we get a palindrome (2279339722).

The spelling of 2054305220 in words is "two billion, fifty-four million, three hundred five thousand, two hundred twenty".

Divisors: 1 2 4 5 10 11 20 22 43 44 55 86 110 172 215 220 430 473 860 946 1892 2365 4730 9460 217157 434314 868628 1085785 2171570 2388727 4343140 4777454 9337751 9554908 11943635 18675502 23887270 37351004 46688755 47774540 93377510 102715261 186755020 205430522 410861044 513576305 1027152610 2054305220