Search a number
-
+
200012101 = 2931721757
BaseRepresentation
bin10111110101111…
…11000101000101
3111221100200000121
423322333011011
5402200341401
631502541541
74646034442
oct1372770505
9457320017
10200012101
11a29a1063
1256b978b1
133258c973
141c7c69c9
151285cca1
hexbebf145

200012101 has 8 divisors (see below), whose sum is σ = 207571320. Its totient is φ = 192497088.

The previous prime is 200012083. The next prime is 200012129. The reversal of 200012101 is 101210002.

It can be written as a sum of positive squares in 4 ways, for example, as 27720225 + 172291876 = 5265^2 + 13126^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 200012101 - 29 = 200011589 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200012161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1686 + ... + 20071.

It is an arithmetic number, because the mean of its divisors is an integer number (25946415).

Almost surely, 2200012101 is an apocalyptic number.

It is an amenable number.

200012101 is a deficient number, since it is larger than the sum of its proper divisors (7559219).

200012101 is a wasteful number, since it uses less digits than its factorization.

200012101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22103.

The product of its (nonzero) digits is 4, while the sum is 7.

The square root of 200012101 is about 14142.5634522176. The cubic root of 200012101 is about 584.8153419176.

Adding to 200012101 its reverse (101210002), we get a palindrome (301222103).

The spelling of 200012101 in words is "two hundred million, twelve thousand, one hundred one".

Divisors: 1 29 317 9193 21757 630953 6896969 200012101