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2193793 = 7313399
BaseRepresentation
bin1000010111100110000001
311010110022121
420113212001
51030200133
6115004241
724434620
oct10274601
94113277
102193793
111269258
12899681
135ba704
144116b7
152d502d
hex217981

2193793 has 4 divisors (see below), whose sum is σ = 2507200. Its totient is φ = 1880388.

The previous prime is 2193791. The next prime is 2193803. The reversal of 2193793 is 3973912.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2193793 - 21 = 2193791 is a prime.

It is an Ulam number.

It is a Duffinian number.

2193793 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (2193791) 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, 156693 + ... + 156706.

It is an arithmetic number, because the mean of its divisors is an integer number (626800).

22193793 is an apocalyptic number.

It is an amenable number.

2193793 is a deficient number, since it is larger than the sum of its proper divisors (313407).

2193793 is an equidigital number, since it uses as much as digits as its factorization.

2193793 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 313406.

The product of its digits is 10206, while the sum is 34.

The square root of 2193793 is about 1481.1458402197. The cubic root of 2193793 is about 129.9367147593.

The spelling of 2193793 in words is "two million, one hundred ninety-three thousand, seven hundred ninety-three".

Divisors: 1 7 313399 2193793