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2002131133 = 6013331333
BaseRepresentation
bin111011101010110…
…0001100010111101
312011112100210120221
41313111201202331
513100021144013
6530400341341
7100420556002
oct16725414275
95145323527
102002131133
11938172832
1247a614851
1325ba423a2
1414dc918a9
15bab8408d
hex775618bd

2002131133 has 4 divisors (see below), whose sum is σ = 2005463068. Its totient is φ = 1998799200.

The previous prime is 2002131083. The next prime is 2002131143. The reversal of 2002131133 is 3311312002.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3311312002 = 21655656001.

It can be written as a sum of positive squares in 2 ways, for example, as 732135364 + 1269995769 = 27058^2 + 35637^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-2002131133 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2002131143) 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, 1665066 + ... + 1666267.

It is an arithmetic number, because the mean of its divisors is an integer number (501365767).

Almost surely, 22002131133 is an apocalyptic number.

It is an amenable number.

2002131133 is a deficient number, since it is larger than the sum of its proper divisors (3331935).

2002131133 is an equidigital number, since it uses as much as digits as its factorization.

2002131133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3331934.

The product of its (nonzero) digits is 108, while the sum is 16.

The square root of 2002131133 is about 44745.1799974031. The cubic root of 2002131133 is about 1260.3684009262.

Adding to 2002131133 its reverse (3311312002), we get a palindrome (5313443135).

The spelling of 2002131133 in words is "two billion, two million, one hundred thirty-one thousand, one hundred thirty-three".

Divisors: 1 601 3331333 2002131133