Search a number
-
+
1940359 = 7127329
BaseRepresentation
bin111011001101110000111
310122120200011
413121232013
5444042414
6105331051
722331011
oct7315607
93576604
101940359
111105903
12796a87
1352c255
143871b1
15284dc4
hex1d9b87

1940359 has 4 divisors (see below), whose sum is σ = 1967760. Its totient is φ = 1912960.

The previous prime is 1940339. The next prime is 1940371. The reversal of 1940359 is 9530491.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9530491 = 41232451.

It is a cyclic number.

It is not a de Polignac number, because 1940359 - 25 = 1940327 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1940359.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1940339) 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, 13594 + ... + 13735.

It is an arithmetic number, because the mean of its divisors is an integer number (491940).

21940359 is an apocalyptic number.

1940359 is a deficient number, since it is larger than the sum of its proper divisors (27401).

1940359 is an equidigital number, since it uses as much as digits as its factorization.

1940359 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27400.

The product of its (nonzero) digits is 4860, while the sum is 31.

The square root of 1940359 is about 1392.9676952464. The cubic root of 1940359 is about 124.7270631442.

The spelling of 1940359 in words is "one million, nine hundred forty thousand, three hundred fifty-nine".

Divisors: 1 71 27329 1940359