Search a number
-
+
1993027 = 7332719
BaseRepresentation
bin111100110100101000011
310202020220211
413212211003
51002234102
6110414551
722640401
oct7464503
93666824
101993027
111141433
12801457
1354a20a
1439c471
152957d7
hex1e6943

1993027 has 4 divisors (see below), whose sum is σ = 1996480. Its totient is φ = 1989576.

The previous prime is 1992983. The next prime is 1993031. The reversal of 1993027 is 7203991.

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

It is a cyclic number.

It is not a de Polignac number, because 1993027 - 219 = 1468739 is a prime.

It is an Ulam number.

It is a Duffinian number.

1993027 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 1993027.

It is not an unprimeable number, because it can be changed into a prime (1993037) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 627 + ... + 2092.

It is an arithmetic number, because the mean of its divisors is an integer number (499120).

21993027 is an apocalyptic number.

1993027 is a deficient number, since it is larger than the sum of its proper divisors (3453).

1993027 is an equidigital number, since it uses as much as digits as its factorization.

1993027 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3452.

The product of its (nonzero) digits is 3402, while the sum is 31.

The square root of 1993027 is about 1411.7460819850. The cubic root of 1993027 is about 125.8455106655.

The spelling of 1993027 in words is "one million, nine hundred ninety-three thousand, twenty-seven".

Divisors: 1 733 2719 1993027