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13021000033 = 20276423779
BaseRepresentation
bin11000010000001110…
…01011000101100001
31020121110022100002111
430020013023011201
5203131334000113
65552021115321
7640446450136
oct141007130541
936543270074
1013021000033
115582019058
122634858b41
1312c6845362
148b747458d
155131ee13d
hex3081cb161

13021000033 has 4 divisors (see below), whose sum is σ = 13027425840. Its totient is φ = 13014574228.

The previous prime is 13021000021. The next prime is 13021000049. The reversal of 13021000033 is 33000012031.

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.

It is a cyclic number.

It is not a de Polignac number, because 13021000033 - 229 = 12484129121 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13020999977 and 13021000022.

It is not an unprimeable number, because it can be changed into a prime (13021000073) 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, 3209863 + ... + 3213916.

It is an arithmetic number, because the mean of its divisors is an integer number (3256856460).

Almost surely, 213021000033 is an apocalyptic number.

It is an amenable number.

13021000033 is a deficient number, since it is larger than the sum of its proper divisors (6425807).

13021000033 is an equidigital number, since it uses as much as digits as its factorization.

13021000033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6425806.

The product of its (nonzero) digits is 54, while the sum is 13.

Adding to 13021000033 its reverse (33000012031), we get a palindrome (46021012064).

The spelling of 13021000033 in words is "thirteen billion, twenty-one million, thirty-three", and thus it is an aban number and an uban number.

Divisors: 1 2027 6423779 13021000033