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13552231001 = 39139346259
BaseRepresentation
bin11001001111100011…
…01010001001011001
31021222110220122222112
430213301222021121
5210223332343001
610120435202105
7656560030361
oct144761521131
937873818875
1013552231001
115824976811
122762746335
13137c9137ca
14927c399a1
15544b85cbb
hex327c6a259

13552231001 has 4 divisors (see below), whose sum is σ = 13552616400. Its totient is φ = 13551845604.

The previous prime is 13552230997. The next prime is 13552231031. The reversal of 13552231001 is 10013225531.

It is a happy number.

13552231001 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 13552231001 - 22 = 13552230997 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13552231031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 133991 + ... + 212268.

It is an arithmetic number, because the mean of its divisors is an integer number (3388154100).

Almost surely, 213552231001 is an apocalyptic number.

It is an amenable number.

13552231001 is a deficient number, since it is larger than the sum of its proper divisors (385399).

13552231001 is an equidigital number, since it uses as much as digits as its factorization.

13552231001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 385398.

The product of its (nonzero) digits is 900, while the sum is 23.

Adding to 13552231001 its reverse (10013225531), we get a palindrome (23565456532).

The spelling of 13552231001 in words is "thirteen billion, five hundred fifty-two million, two hundred thirty-one thousand, one".

Divisors: 1 39139 346259 13552231001