Search a number
-
+
200555131 = 728650733
BaseRepresentation
bin10111111010000…
…11101001111011
3111222101020220211
423331003221323
5402320231011
631522331551
74653455560
oct1375035173
9458336824
10200555131
11a3232047
12571b9bb7
133271cb9a
141c8c8867
1512918b21
hexbf43a7b

200555131 has 4 divisors (see below), whose sum is σ = 229205872. Its totient is φ = 171904392.

The previous prime is 200555123. The next prime is 200555153. The reversal of 200555131 is 131555002.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 200555131 - 23 = 200555123 is a prime.

It is a super-2 number, since 2×2005551312 = 80444721140854322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (200555161) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14325360 + ... + 14325373.

It is an arithmetic number, because the mean of its divisors is an integer number (57301468).

Almost surely, 2200555131 is an apocalyptic number.

200555131 is a deficient number, since it is larger than the sum of its proper divisors (28650741).

200555131 is an equidigital number, since it uses as much as digits as its factorization.

200555131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28650740.

The product of its (nonzero) digits is 750, while the sum is 22.

The square root of 200555131 is about 14161.7488679894. The cubic root of 200555131 is about 585.3441187680.

The spelling of 200555131 in words is "two hundred million, five hundred fifty-five thousand, one hundred thirty-one".

Divisors: 1 7 28650733 200555131