Search a number
-
+
1330132021 = 23835871187
BaseRepresentation
bin100111101001000…
…0011010000110101
310102200212201002221
41033102003100311
510211003211041
6335553202341
744650635631
oct11722032065
93380781087
101330132021
11622908969
123115603b1
1318275808a
14c8925dc1
157bb932d1
hex4f483435

1330132021 has 16 divisors (see below), whose sum is σ = 1408264704. Its totient is φ = 1253772784.

The previous prime is 1330131991. The next prime is 1330132057. The reversal of 1330132021 is 1202310331.

It is a cyclic number.

It is not a de Polignac number, because 1330132021 - 211 = 1330129973 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1330131986 and 1330132004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1330132061) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1119990 + ... + 1121176.

It is an arithmetic number, because the mean of its divisors is an integer number (88016544).

Almost surely, 21330132021 is an apocalyptic number.

It is an amenable number.

1330132021 is a deficient number, since it is larger than the sum of its proper divisors (78132683).

1330132021 is a wasteful number, since it uses less digits than its factorization.

1330132021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1880.

The product of its (nonzero) digits is 108, while the sum is 16.

The square root of 1330132021 is about 36470.9750486603. The cubic root of 1330132021 is about 1099.7608353318.

Adding to 1330132021 its reverse (1202310331), we get a palindrome (2532442352).

The spelling of 1330132021 in words is "one billion, three hundred thirty million, one hundred thirty-two thousand, twenty-one".

Divisors: 1 23 83 587 1187 1909 13501 27301 48721 98521 696769 1120583 2265983 16025687 57831827 1330132021