Search a number
-
+
1996625 = 5315973
BaseRepresentation
bin111100111011101010001
310202102212002
413213131101
51002343000
6110443345
722654031
oct7473521
93672762
101996625
111144104
12803555
1354ba47
1439d8c1
152968d5
hex1e7751

1996625 has 8 divisors (see below), whose sum is σ = 2491944. Its totient is φ = 1597200.

The previous prime is 1996613. The next prime is 1996639. The reversal of 1996625 is 5266991.

It can be written as a sum of positive squares in 4 ways, for example, as 14161 + 1982464 = 119^2 + 1408^2 .

It is not a de Polignac number, because 1996625 - 24 = 1996609 is a prime.

It is a super-2 number, since 2×19966252 = 7973022781250, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7862 + ... + 8111.

It is an arithmetic number, because the mean of its divisors is an integer number (311493).

21996625 is an apocalyptic number.

It is an amenable number.

1996625 is a deficient number, since it is larger than the sum of its proper divisors (495319).

1996625 is an equidigital number, since it uses as much as digits as its factorization.

1996625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15988 (or 15978 counting only the distinct ones).

The product of its digits is 29160, while the sum is 38.

The square root of 1996625 is about 1413.0198158554. The cubic root of 1996625 is about 125.9211945283.

It can be divided in two parts, 19966 and 25, that added together give a palindrome (19991).

The spelling of 1996625 in words is "one million, nine hundred ninety-six thousand, six hundred twenty-five".

Divisors: 1 5 25 125 15973 79865 399325 1996625