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13123030033 = 29452518277
BaseRepresentation
bin11000011100011000…
…11000110000010001
31020212120021222221101
430032030120300101
5203333443430113
610010104024401
7643125625531
oct141614306021
936776258841
1013123030033
115624676773
122662a62101
131311a19b39
148c6c334c1
1551c1552dd
hex30e318c11

13123030033 has 4 divisors (see below), whose sum is σ = 13575548340. Its totient is φ = 12670511728.

The previous prime is 13123030027. The next prime is 13123030051. The reversal of 13123030033 is 33003032131.

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 9558581824 + 3564448209 = 97768^2 + 59703^2 .

It is a cyclic number.

It is not a de Polignac number, because 13123030033 - 229 = 12586159121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13123030003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 226259110 + ... + 226259167.

It is an arithmetic number, because the mean of its divisors is an integer number (3393887085).

Almost surely, 213123030033 is an apocalyptic number.

It is an amenable number.

13123030033 is a deficient number, since it is larger than the sum of its proper divisors (452518307).

13123030033 is an equidigital number, since it uses as much as digits as its factorization.

13123030033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 452518306.

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

Adding to 13123030033 its reverse (33003032131), we get a palindrome (46126062164).

The spelling of 13123030033 in words is "thirteen billion, one hundred twenty-three million, thirty thousand, thirty-three".

Divisors: 1 29 452518277 13123030033