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1683054007 = 2591649577
BaseRepresentation
bin110010001010001…
…0101110110110111
311100021222000001121
41210110111312313
511421330212012
6435001404411
756464502665
oct14424256667
94307860047
101683054007
11794049428
123ab799707
1320a8c525b
1411d753c35
159cb57a07
hex64515db7

1683054007 has 4 divisors (see below), whose sum is σ = 1683706176. Its totient is φ = 1682401840.

The previous prime is 1683053971. The next prime is 1683054011. The reversal of 1683054007 is 7004503861.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-1683054007 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 (1683054047) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 322198 + ... + 327379.

It is an arithmetic number, because the mean of its divisors is an integer number (420926544).

Almost surely, 21683054007 is an apocalyptic number.

1683054007 is a deficient number, since it is larger than the sum of its proper divisors (652169).

1683054007 is an equidigital number, since it uses as much as digits as its factorization.

1683054007 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 652168.

The product of its (nonzero) digits is 20160, while the sum is 34.

The square root of 1683054007 is about 41025.0412187483. The cubic root of 1683054007 is about 1189.5043028781.

Adding to 1683054007 its reverse (7004503861), we get a palindrome (8687557868).

The spelling of 1683054007 in words is "one billion, six hundred eighty-three million, fifty-four thousand, seven".

Divisors: 1 2591 649577 1683054007