Search a number
-
+
2012323100 = 225220123231
BaseRepresentation
bin111011111110001…
…1001110100011100
312012020112121100012
41313330121310130
513110123314400
6531403022352
7100603315124
oct16774316434
95166477305
102012323100
119429a4147
12481b0a9b8
13260ba0438
14151385c84
15bb9e8d35
hex77f19d1c

2012323100 has 18 divisors (see below), whose sum is σ = 4366741344. Its totient is φ = 804929200.

The previous prime is 2012323087. The next prime is 2012323141. The reversal of 2012323100 is 13232102.

It is a happy number.

It is a super-2 number, since 2×20123231002 = 8098888517587220000, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 10061516 + ... + 10061715.

Almost surely, 22012323100 is an apocalyptic number.

2012323100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2012323100 is an abundant number, since it is smaller than the sum of its proper divisors (2354418244).

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

2012323100 is a wasteful number, since it uses less digits than its factorization.

2012323100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20123245 (or 20123238 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 2012323100 is about 44858.9244186706. The cubic root of 2012323100 is about 1262.5034421368.

Adding to 2012323100 its reverse (13232102), we get a palindrome (2025555202).

The spelling of 2012323100 in words is "two billion, twelve million, three hundred twenty-three thousand, one hundred".

Divisors: 1 2 4 5 10 20 25 50 100 20123231 40246462 80492924 100616155 201232310 402464620 503080775 1006161550 2012323100