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1683075893 = 2117976663
BaseRepresentation
bin110010001010001…
…1011001100110101
311100022000010002012
41210110123030311
511421331412033
6435002054005
756464623542
oct14424331465
94308003065
101683075893
11794063914
123ab7aa305
1320a9021c5
1411d75bbc9
159cb5e248
hex6451b335

1683075893 has 4 divisors (see below), whose sum is σ = 1691052768. Its totient is φ = 1675099020.

The previous prime is 1683075887. The next prime is 1683075913. The reversal of 1683075893 is 3985703861.

It is a happy number.

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, and also an emirpimes, since its reverse is a distinct semiprime: 3985703861 = 10247388963.

It is a cyclic number.

It is not a de Polignac number, because 1683075893 - 220 = 1682027317 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 (1683075833) 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, 3988121 + ... + 3988542.

It is an arithmetic number, because the mean of its divisors is an integer number (422763192).

Almost surely, 21683075893 is an apocalyptic number.

It is an amenable number.

1683075893 is a deficient number, since it is larger than the sum of its proper divisors (7976875).

1683075893 is an equidigital number, since it uses as much as digits as its factorization.

1683075893 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7976874.

The product of its (nonzero) digits is 1088640, while the sum is 50.

The square root of 1683075893 is about 41025.3079574060. The cubic root of 1683075893 is about 1189.5094588581.

The spelling of 1683075893 in words is "one billion, six hundred eighty-three million, seventy-five thousand, eight hundred ninety-three".

Divisors: 1 211 7976663 1683075893