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200495791 = 3113371913
BaseRepresentation
bin10111111001101…
…01001010101111
3111222021020112001
423330311022233
5402311331131
631521153131
74653120556
oct1374651257
9458236461
10200495791
11a31a1501
125718b7a7
13326cbb82
141c8b0d9d
1512906261
hexbf352af

200495791 has 8 divisors (see below), whose sum is σ = 201842784. Its totient is φ = 199153920.

The previous prime is 200495753. The next prime is 200495797. The reversal of 200495791 is 197594002.

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 200495791 - 27 = 200495663 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 200495791.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200495797) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 103851 + ... + 105763.

It is an arithmetic number, because the mean of its divisors is an integer number (25230348).

Almost surely, 2200495791 is an apocalyptic number.

200495791 is a deficient number, since it is larger than the sum of its proper divisors (1346993).

200495791 is a wasteful number, since it uses less digits than its factorization.

200495791 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2561.

The product of its (nonzero) digits is 22680, while the sum is 37.

The square root of 200495791 is about 14159.6536327694. The cubic root of 200495791 is about 585.2863827794.

The spelling of 200495791 in words is "two hundred million, four hundred ninety-five thousand, seven hundred ninety-one".

Divisors: 1 311 337 1913 104807 594943 644681 200495791