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13213132001 = 18773703837
BaseRepresentation
bin11000100111001000…
…00110010011100001
31021002211211122121022
430103210012103201
5204030030211001
610023043135225
7645301524506
oct142344062341
937084748538
1013213132001
115670517703
122689074515
1313275a6304
148d4ba94ad
1552500211b
hex3139064e1

13213132001 has 4 divisors (see below), whose sum is σ = 13213854612. Its totient is φ = 13212409392.

The previous prime is 13213131941. The next prime is 13213132027. The reversal of 13213132001 is 10023131231.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 13013333776 + 199798225 = 114076^2 + 14135^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-13213132001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13213132061) 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, 333146 + ... + 370691.

It is an arithmetic number, because the mean of its divisors is an integer number (3303463653).

Almost surely, 213213132001 is an apocalyptic number.

It is an amenable number.

13213132001 is a deficient number, since it is larger than the sum of its proper divisors (722611).

13213132001 is an equidigital number, since it uses as much as digits as its factorization.

13213132001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 722610.

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 13213132001 its reverse (10023131231), we get a palindrome (23236263232).

The spelling of 13213132001 in words is "thirteen billion, two hundred thirteen million, one hundred thirty-two thousand, one".

Divisors: 1 18773 703837 13213132001