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13044401233 = 14987546317
BaseRepresentation
bin11000010011000000…
…11100010001010001
31020200002100020111121
430021200130101101
5203203331314413
65554214442241
7641152403203
oct141140342121
936602306447
1013044401233
115594251796
122640663381
1312cb649916
148ba606773
155152c2b8d
hex30981c451

13044401233 has 4 divisors (see below), whose sum is σ = 13131947700. Its totient is φ = 12956854768.

The previous prime is 13044401131. The next prime is 13044401239. The reversal of 13044401233 is 33210444031.

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 1248703569 + 11795697664 = 35337^2 + 108608^2 .

It is a cyclic number.

It is not a de Polignac number, because 13044401233 - 213 = 13044393041 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13044401198 and 13044401207.

It is not an unprimeable number, because it can be changed into a prime (13044401239) 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, 43773010 + ... + 43773307.

It is an arithmetic number, because the mean of its divisors is an integer number (3282986925).

Almost surely, 213044401233 is an apocalyptic number.

It is an amenable number.

13044401233 is a deficient number, since it is larger than the sum of its proper divisors (87546467).

13044401233 is an equidigital number, since it uses as much as digits as its factorization.

13044401233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87546466.

The product of its (nonzero) digits is 3456, while the sum is 25.

Adding to 13044401233 its reverse (33210444031), we get a palindrome (46254845264).

The spelling of 13044401233 in words is "thirteen billion, forty-four million, four hundred one thousand, two hundred thirty-three".

Divisors: 1 149 87546317 13044401233