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13013220001 = 101912770579
BaseRepresentation
bin11000001111010010…
…11111101010100001
31020120220200001220011
430013221133222201
5203122341020001
65551142244521
7640323354625
oct140751375241
936526601804
1013013220001
115578694881
122632126741
1312c50500a2
148b640b185
155126b3d51
hex307a5faa1

13013220001 has 4 divisors (see below), whose sum is σ = 13025991600. Its totient is φ = 13000448404.

The previous prime is 13013219953. The next prime is 13013220089. The reversal of 13013220001 is 10002231031.

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 13013220001 - 29 = 13013219489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13013220091) 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, 6384271 + ... + 6386308.

It is an arithmetic number, because the mean of its divisors is an integer number (3256497900).

Almost surely, 213013220001 is an apocalyptic number.

It is an amenable number.

13013220001 is a deficient number, since it is larger than the sum of its proper divisors (12771599).

13013220001 is a wasteful number, since it uses less digits than its factorization.

13013220001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12771598.

The product of its (nonzero) digits is 36, while the sum is 13.

Adding to 13013220001 its reverse (10002231031), we get a palindrome (23015451032).

The spelling of 13013220001 in words is "thirteen billion, thirteen million, two hundred twenty thousand, one".

Divisors: 1 1019 12770579 13013220001