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13220123203 = 72417836469
BaseRepresentation
bin11000100111111101…
…10001001001000011
31021010022222211201201
430103332301021003
5204033322420303
610023453042031
7645415123150
oct142376611103
937108884651
1013220123203
115674462261
12268b486317
131328b83511
148d5aa9227
1552593381d
hex313fb1243

13220123203 has 8 divisors (see below), whose sum is σ = 15171405920. Its totient is φ = 11284513920.

The previous prime is 13220123159. The next prime is 13220123227. The reversal of 13220123203 is 30232102231.

13220123203 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13220123203 - 29 = 13220122691 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13220123243) 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 7 ways as a sum of consecutive naturals, for example, 3916548 + ... + 3919921.

It is an arithmetic number, because the mean of its divisors is an integer number (1896425740).

Almost surely, 213220123203 is an apocalyptic number.

13220123203 is a deficient number, since it is larger than the sum of its proper divisors (1951282717).

13220123203 is an equidigital number, since it uses as much as digits as its factorization.

13220123203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7836717.

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 13220123203 its reverse (30232102231), we get a palindrome (43452225434).

The spelling of 13220123203 in words is "thirteen billion, two hundred twenty million, one hundred twenty-three thousand, two hundred three".

Divisors: 1 7 241 1687 7836469 54855283 1888589029 13220123203