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2002031093 = 8812272453
BaseRepresentation
bin111011101010100…
…1001000111110101
312011112011201100202
41313111021013311
513100004443333
6530354250245
7100416661226
oct16725110765
95145151322
102002031093
11938104657
1247a586985
1325ba089aa
1414dc6724d
15bab645e8
hex775491f5

2002031093 has 4 divisors (see below), whose sum is σ = 2004304428. Its totient is φ = 1999757760.

The previous prime is 2002031069. The next prime is 2002031099. The reversal of 2002031093 is 3901302002.

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 919423684 + 1082607409 = 30322^2 + 32903^2 .

It is a cyclic number.

It is not a de Polignac number, because 2002031093 - 212 = 2002026997 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 (2002031099) 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, 1135346 + ... + 1137107.

It is an arithmetic number, because the mean of its divisors is an integer number (501076107).

Almost surely, 22002031093 is an apocalyptic number.

It is an amenable number.

2002031093 is a deficient number, since it is larger than the sum of its proper divisors (2273335).

2002031093 is an equidigital number, since it uses as much as digits as its factorization.

2002031093 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2273334.

The product of its (nonzero) digits is 324, while the sum is 20.

The square root of 2002031093 is about 44744.0620976683. The cubic root of 2002031093 is about 1260.3474084026.

Adding to 2002031093 its reverse (3901302002), we get a palindrome (5903333095).

The spelling of 2002031093 in words is "two billion, two million, thirty-one thousand, ninety-three".

Divisors: 1 881 2272453 2002031093