Search a number
-
+
200131212000000 = 2835616677601
BaseRepresentation
bin101101100000010010101101…
…110011001011101100000000
3222020121100122021011021122010
4231200102231303023230000
5202212422210233000000
61545351002022012520
760104001000026541
oct5540225563135400
9866540567137563
10200131212000000
115884a196844a76
121a542929b77140
1387893a5299b78
14375c58c0644c8
151820d1350dd50
hexb604adccbb00

200131212000000 has 252 divisors, whose sum is σ = 665792620089128. Its totient is φ = 53368320000000.

The previous prime is 200131211999993. The next prime is 200131212000001. The reversal of 200131212000000 is 212131002.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a self number, because there is not a number n which added to its sum of digits gives 200131212000000.

It is not an unprimeable number, because it can be changed into a prime (200131212000001) by changing a digit.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 3661200 + ... + 20338800.

Almost surely, 2200131212000000 is an apocalyptic number.

200131212000000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 200131212000000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (332896310044564).

200131212000000 is an abundant number, since it is smaller than the sum of its proper divisors (465661408089128).

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

200131212000000 is an frugal number, since it uses more digits than its factorization.

200131212000000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16677650 (or 16677611 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 12.

Adding to 200131212000000 its reverse (212131002), we get a palindrome (200131424131002).

The spelling of 200131212000000 in words is "two hundred trillion, one hundred thirty-one billion, two hundred twelve million", and thus it is an aban number.