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1996201 = 19710133
BaseRepresentation
bin111100111010110101001
310202102021101
413213112221
51002334301
6110441401
722652554
oct7472651
93672241
101996201
111143859
12803261
1354b7ac
1439d69b
15296701
hex1e75a9

1996201 has 4 divisors (see below), whose sum is σ = 2006532. Its totient is φ = 1985872.

The previous prime is 1996177. The next prime is 1996207. The reversal of 1996201 is 1026991.

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

It can be written as a sum of positive squares in 2 ways, for example, as 1819801 + 176400 = 1349^2 + 420^2 .

It is a cyclic number.

It is not a de Polignac number, because 1996201 - 29 = 1995689 is a prime.

It is a Duffinian number.

1996201 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 1996201.

It is not an unprimeable number, because it can be changed into a prime (1996207) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 4870 + ... + 5263.

It is an arithmetic number, because the mean of its divisors is an integer number (501633).

21996201 is an apocalyptic number.

It is an amenable number.

1996201 is a deficient number, since it is larger than the sum of its proper divisors (10331).

1996201 is a wasteful number, since it uses less digits than its factorization.

1996201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10330.

The product of its (nonzero) digits is 972, while the sum is 28.

The square root of 1996201 is about 1412.8697746077. The cubic root of 1996201 is about 125.9122804247.

It can be divided in two parts, 1996 and 201, that added together give a cube (2197 = 133).

The spelling of 1996201 in words is "one million, nine hundred ninety-six thousand, two hundred one".

Divisors: 1 197 10133 1996201