Search a number
-
+
13001300321 = 23565273927
BaseRepresentation
bin11000001101111000…
…00001100101100001
31020120002020111011112
430012330001211201
5203111313102241
65550034553105
7640120141442
oct140674014541
936502214145
1013001300321
1155719933a9
12262a138795
1312c2738819
148b49c72c9
1551160c1eb
hex306f01961

13001300321 has 4 divisors (see below), whose sum is σ = 13566574272. Its totient is φ = 12436026372.

The previous prime is 13001300311. The next prime is 13001300327. The reversal of 13001300321 is 12300310031.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 12300310031 = 52567233993.

It is a cyclic number.

It is not a de Polignac number, because 13001300321 - 214 = 13001283937 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 13001300296 and 13001300305.

It is not an unprimeable number, because it can be changed into a prime (13001300327) 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, 282636941 + ... + 282636986.

It is an arithmetic number, because the mean of its divisors is an integer number (3391643568).

Almost surely, 213001300321 is an apocalyptic number.

It is an amenable number.

13001300321 is a deficient number, since it is larger than the sum of its proper divisors (565273951).

13001300321 is an equidigital number, since it uses as much as digits as its factorization.

13001300321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 565273950.

The product of its (nonzero) digits is 54, while the sum is 14.

Adding to 13001300321 its reverse (12300310031), we get a palindrome (25301610352).

The spelling of 13001300321 in words is "thirteen billion, one million, three hundred thousand, three hundred twenty-one".

Divisors: 1 23 565273927 13001300321