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1993201 = 7284743
BaseRepresentation
bin111100110100111110001
310202021011021
413212213301
51002240301
6110415441
722641040
oct7464761
93667137
101993201
111141581
12801581
1354a312
1439c557
152958a1
hex1e69f1

1993201 has 4 divisors (see below), whose sum is σ = 2277952. Its totient is φ = 1708452.

The previous prime is 1993193. The next prime is 1993217. The reversal of 1993201 is 1023991.

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 1993201 - 23 = 1993193 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1993231) 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, 142365 + ... + 142378.

It is an arithmetic number, because the mean of its divisors is an integer number (569488).

21993201 is an apocalyptic number.

It is an amenable number.

1993201 is a deficient number, since it is larger than the sum of its proper divisors (284751).

1993201 is an equidigital number, since it uses as much as digits as its factorization.

1993201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 284750.

The product of its (nonzero) digits is 486, while the sum is 25.

The square root of 1993201 is about 1411.8077064530. The cubic root of 1993201 is about 125.8491728473.

The spelling of 1993201 in words is "one million, nine hundred ninety-three thousand, two hundred one".

Divisors: 1 7 284743 1993201