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201131033 = 1009199337
BaseRepresentation
bin10111111110100…
…00010000011001
3112000110111220112
423333100100121
5402442143113
631542534105
74661404565
oct1377202031
9460414815
10201131033
11a35957a4
1257437335
133289205c
141c9d86a5
15129ce5a8
hexbfd0419

201131033 has 4 divisors (see below), whose sum is σ = 201331380. Its totient is φ = 200930688.

The previous prime is 201130999. The next prime is 201131053. The reversal of 201131033 is 330131102.

201131033 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It can be written as a sum of positive squares in 2 ways, for example, as 50013184 + 151117849 = 7072^2 + 12293^2 .

It is a cyclic number.

It is not a de Polignac number, because 201131033 - 28 = 201130777 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 201130999 and 201131017.

It is not an unprimeable number, because it can be changed into a prime (201131053) 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, 98660 + ... + 100677.

It is an arithmetic number, because the mean of its divisors is an integer number (50332845).

Almost surely, 2201131033 is an apocalyptic number.

It is an amenable number.

201131033 is a deficient number, since it is larger than the sum of its proper divisors (200347).

201131033 is a wasteful number, since it uses less digits than its factorization.

201131033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 200346.

The product of its (nonzero) digits is 54, while the sum is 14.

The square root of 201131033 is about 14182.0673034646. The cubic root of 201131033 is about 585.9038629385.

Adding to 201131033 its reverse (330131102), we get a palindrome (531262135).

The spelling of 201131033 in words is "two hundred one million, one hundred thirty-one thousand, thirty-three".

Divisors: 1 1009 199337 201131033