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200131311 = 3471419371
BaseRepresentation
bin10111110110111…
…00001011101111
3111221120201112210
423323130023233
5402213200221
631505301503
74650042132
oct1373341357
9457521483
10200131311
11a2a72686
1257034893
1332601cc3
141c818219
1512883276
hexbedc2ef

200131311 has 8 divisors (see below), whose sum is σ = 272519424. Its totient is φ = 130582040.

The previous prime is 200131289. The next prime is 200131387. The reversal of 200131311 is 113131002.

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 200131311 - 25 = 200131279 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200131391) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 709545 + ... + 709826.

It is an arithmetic number, because the mean of its divisors is an integer number (34064928).

Almost surely, 2200131311 is an apocalyptic number.

200131311 is a deficient number, since it is larger than the sum of its proper divisors (72388113).

200131311 is a wasteful number, since it uses less digits than its factorization.

200131311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1419421.

The product of its (nonzero) digits is 18, while the sum is 12.

The square root of 200131311 is about 14146.7774068867. Note that the first 3 decimals coincide. The cubic root of 200131311 is about 584.9315048741.

Adding to 200131311 its reverse (113131002), we get a palindrome (313262313).

The spelling of 200131311 in words is "two hundred million, one hundred thirty-one thousand, three hundred eleven".

Divisors: 1 3 47 141 1419371 4258113 66710437 200131311