Search a number
-
+
13302021 = 311339239
BaseRepresentation
bin110010101111…
…100100000101
3221000210221110
4302233210011
511401131041
61153035233
7221031255
oct62574405
927023843
1013302021
117566007
124555b19
1329a9825
141aa3965
15127b516
hexcaf905

13302021 has 8 divisors (see below), whose sum is σ = 17893440. Its totient is φ = 8789312.

The previous prime is 13302019. The next prime is 13302049. The reversal of 13302021 is 12020331.

It is a happy number.

13302021 is digitally balanced in base 2, base 3 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13302021 - 21 = 13302019 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13301988 and 13302006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13302011) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19281 + ... + 19958.

It is an arithmetic number, because the mean of its divisors is an integer number (2236680).

Almost surely, 213302021 is an apocalyptic number.

It is an amenable number.

13302021 is a deficient number, since it is larger than the sum of its proper divisors (4591419).

13302021 is a wasteful number, since it uses less digits than its factorization.

13302021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39355.

The product of its (nonzero) digits is 36, while the sum is 12.

The square root of 13302021 is about 3647.1935786300. The cubic root of 13302021 is about 236.9404504198.

Adding to 13302021 its reverse (12020331), we get a palindrome (25322352).

The spelling of 13302021 in words is "thirteen million, three hundred two thousand, twenty-one".

Divisors: 1 3 113 339 39239 117717 4434007 13302021