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13320031033 = 32034158611
BaseRepresentation
bin11000110011110111…
…11000101100111001
31021101021222200111201
430121323320230321
5204234411443113
610041422254201
7651040252501
oct143173705471
937337880451
1013320031033
1157158a0511
1226b8a27361
13134379408a
14905074a01
1552e5bacdd
hex319ef8b39

13320031033 has 4 divisors (see below), whose sum is σ = 13324192848. Its totient is φ = 13315869220.

The previous prime is 13320030947. The next prime is 13320031037. The reversal of 13320031033 is 33013002331.

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, and also an emirpimes, since its reverse is a distinct semiprime: 33013002331 = 79601414731.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-13320031033 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13320031033.

It is not an unprimeable number, because it can be changed into a prime (13320031037) 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, 2076103 + ... + 2082508.

It is an arithmetic number, because the mean of its divisors is an integer number (3331048212).

Almost surely, 213320031033 is an apocalyptic number.

It is an amenable number.

13320031033 is a deficient number, since it is larger than the sum of its proper divisors (4161815).

13320031033 is an equidigital number, since it uses as much as digits as its factorization.

13320031033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4161814.

The product of its (nonzero) digits is 486, while the sum is 19.

Adding to 13320031033 its reverse (33013002331), we get a palindrome (46333033364).

The spelling of 13320031033 in words is "thirteen billion, three hundred twenty million, thirty-one thousand, thirty-three".

Divisors: 1 3203 4158611 13320031033