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13212232003 = 29455594207
BaseRepresentation
bin11000100111000001…
…01010100101000011
31021002210010221001001
430103200222211003
5204024312411003
610023011552431
7645261055555
oct142340524503
937083127031
1013212232003
11566aa62503
1226888bb717
13132734c779
148d4a134d5
15524dc561d
hex31382a943

13212232003 has 4 divisors (see below), whose sum is σ = 13667826240. Its totient is φ = 12756637768.

The previous prime is 13212231953. The next prime is 13212232009. The reversal of 13212232003 is 30023221231.

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

It is a cyclic number.

It is not a de Polignac number, because 13212232003 - 29 = 13212231491 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13212232009) 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, 227797075 + ... + 227797132.

It is an arithmetic number, because the mean of its divisors is an integer number (3416956560).

Almost surely, 213212232003 is an apocalyptic number.

13212232003 is a deficient number, since it is larger than the sum of its proper divisors (455594237).

13212232003 is an equidigital number, since it uses as much as digits as its factorization.

13212232003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 455594236.

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

Adding to 13212232003 its reverse (30023221231), we get a palindrome (43235453234).

The spelling of 13212232003 in words is "thirteen billion, two hundred twelve million, two hundred thirty-two thousand, three".

Divisors: 1 29 455594207 13212232003