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1994085001 = 8263241327
BaseRepresentation
bin111011011011011…
…0101001010001001
312010222020000101001
41312312311022021
513040441210001
6525512055001
7100262304616
oct16666651211
95128200331
101994085001
11933677637
12477994461
1325a185c6c
1414cb9950d
15ba0e5001
hex76db5289

1994085001 has 4 divisors (see below), whose sum is σ = 1994334592. Its totient is φ = 1993835412.

The previous prime is 1994084999. The next prime is 1994085031. The reversal of 1994085001 is 1005804991.

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 1994085001 - 21 = 1994084999 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1994085031) 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, 112401 + ... + 128926.

It is an arithmetic number, because the mean of its divisors is an integer number (498583648).

Almost surely, 21994085001 is an apocalyptic number.

It is an amenable number.

1994085001 is a deficient number, since it is larger than the sum of its proper divisors (249591).

1994085001 is an equidigital number, since it uses as much as digits as its factorization.

1994085001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 249590.

The product of its (nonzero) digits is 12960, while the sum is 37.

The square root of 1994085001 is about 44655.1788821857. The cubic root of 1994085001 is about 1258.6777514449.

Adding to 1994085001 its reverse (1005804991), we get a palindrome (2999889992).

The spelling of 1994085001 in words is "one billion, nine hundred ninety-four million, eighty-five thousand, one".

Divisors: 1 8263 241327 1994085001