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201092689 = 7127226201
BaseRepresentation
bin10111111110001…
…10111001010001
3112000101120022101
423333012321101
5402434431224
631542040401
74661155030
oct1377067121
9460346271
10201092689
11a3569a06
1257419101
133287a775
141c9c8717
15129c3044
hexbfc6e51

201092689 has 8 divisors (see below), whose sum is σ = 231630848. Its totient is φ = 171007200.

The previous prime is 201092687. The next prime is 201092701. The reversal of 201092689 is 986290102.

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

It is not a de Polignac number, because 201092689 - 21 = 201092687 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (201092681) 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, 112212 + ... + 113989.

It is an arithmetic number, because the mean of its divisors is an integer number (28953856).

Almost surely, 2201092689 is an apocalyptic number.

It is an amenable number.

201092689 is a deficient number, since it is larger than the sum of its proper divisors (30538159).

201092689 is a wasteful number, since it uses less digits than its factorization.

201092689 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 226335.

The product of its (nonzero) digits is 15552, while the sum is 37.

The square root of 201092689 is about 14180.7153909808. The cubic root of 201092689 is about 585.8666279659.

It can be divided in two parts, 2010926 and 89, that added together give a triangular number (2011015 = T2005).

The spelling of 201092689 in words is "two hundred one million, ninety-two thousand, six hundred eighty-nine".

Divisors: 1 7 127 889 226201 1583407 28727527 201092689