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2173201 = 19234973
BaseRepresentation
bin1000010010100100010001
311002102001221
420102210101
51024020301
6114325041
724320602
oct10224421
94072057
102173201
111254838
12889781
135b1224
14407da9
152cdda1
hex212911

2173201 has 8 divisors (see below), whose sum is σ = 2387520. Its totient is φ = 1968912.

The previous prime is 2173183. The next prime is 2173207. The reversal of 2173201 is 1023712.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2173201 - 217 = 2042129 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2173207) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2050 + ... + 2923.

It is an arithmetic number, because the mean of its divisors is an integer number (298440).

22173201 is an apocalyptic number.

It is an amenable number.

2173201 is a deficient number, since it is larger than the sum of its proper divisors (214319).

2173201 is a wasteful number, since it uses less digits than its factorization.

2173201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5015.

The product of its (nonzero) digits is 84, while the sum is 16.

The square root of 2173201 is about 1474.1780760817. The cubic root of 2173201 is about 129.5288864865.

Adding to 2173201 its reverse (1023712), we get a palindrome (3196913).

The spelling of 2173201 in words is "two million, one hundred seventy-three thousand, two hundred one".

Divisors: 1 19 23 437 4973 94487 114379 2173201