Search a number
-
+
1330020023 = 1459911597
BaseRepresentation
bin100111101000110…
…0111111010110111
310102200200000110212
41033101213322313
510210441120043
6335550540035
744646661253
oct11721477267
93380600425
101330020023
11622841802
1231150761b
131827190c7
14c88d7263
157bb70018
hex4f467eb7

1330020023 has 4 divisors (see below), whose sum is σ = 1330933080. Its totient is φ = 1329106968.

The previous prime is 1330020017. The next prime is 1330020047. The reversal of 1330020023 is 3200200331.

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 1330020023 - 28 = 1330019767 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1330020623) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 454340 + ... + 457257.

It is an arithmetic number, because the mean of its divisors is an integer number (332733270).

Almost surely, 21330020023 is an apocalyptic number.

1330020023 is a deficient number, since it is larger than the sum of its proper divisors (913057).

1330020023 is an equidigital number, since it uses as much as digits as its factorization.

1330020023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 913056.

The product of its (nonzero) digits is 108, while the sum is 14.

The square root of 1330020023 is about 36469.4395761712. The cubic root of 1330020023 is about 1099.7299676011.

Adding to 1330020023 its reverse (3200200331), we get a palindrome (4530220354).

The spelling of 1330020023 in words is "one billion, three hundred thirty million, twenty thousand, twenty-three".

Divisors: 1 1459 911597 1330020023