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13022200021 = 46512799871
BaseRepresentation
bin11000010000010111…
…10000000011010101
31020121112120022011111
430020023300003111
5203132140400041
65552102535021
7640462605505
oct141013600325
936545508144
1013022200021
115582768686
122635137471
1312c6b755cc
148b76a7a05
15513389981
hex3082f00d5

13022200021 has 4 divisors (see below), whose sum is σ = 13025004544. Its totient is φ = 13019395500.

The previous prime is 13022200019. The next prime is 13022200043. The reversal of 13022200021 is 12000222031.

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 13022200021 - 21 = 13022200019 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13022199974 and 13022200010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13022207021) 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, 1395285 + ... + 1404586.

It is an arithmetic number, because the mean of its divisors is an integer number (3256251136).

Almost surely, 213022200021 is an apocalyptic number.

It is an amenable number.

13022200021 is a deficient number, since it is larger than the sum of its proper divisors (2804523).

13022200021 is an equidigital number, since it uses as much as digits as its factorization.

13022200021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2804522.

The product of its (nonzero) digits is 48, while the sum is 13.

Adding to 13022200021 its reverse (12000222031), we get a palindrome (25022422052).

The spelling of 13022200021 in words is "thirteen billion, twenty-two million, two hundred thousand, twenty-one".

Divisors: 1 4651 2799871 13022200021