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32144322013 = 291108424897
BaseRepresentation
bin11101111011111100…
…110110110111011101
310001222012012202011221
4131323330312313131
51011312421301023
622433352213341
72215365141346
oct357374666735
9101865182157
1032144322013
11126a56a4991
12629109a251
133053700aab
1417ad1510cd
15c81ee885d
hex77bf36ddd

32144322013 has 4 divisors (see below), whose sum is σ = 33252746940. Its totient is φ = 31035897088.

The previous prime is 32144321971. The next prime is 32144322017. The reversal of 32144322013 is 31022344123.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 31022344123 = 54756713609.

It can be written as a sum of positive squares in 2 ways, for example, as 9655420644 + 22488901369 = 98262^2 + 149963^2 .

It is a cyclic number.

It is not a de Polignac number, because 32144322013 - 213 = 32144313821 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (32144322017) 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, 554212420 + ... + 554212477.

It is an arithmetic number, because the mean of its divisors is an integer number (8313186735).

Almost surely, 232144322013 is an apocalyptic number.

It is an amenable number.

32144322013 is a deficient number, since it is larger than the sum of its proper divisors (1108424927).

32144322013 is a wasteful number, since it uses less digits than its factorization.

32144322013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1108424926.

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

Adding to 32144322013 its reverse (31022344123), we get a palindrome (63166666136).

The spelling of 32144322013 in words is "thirty-two billion, one hundred forty-four million, three hundred twenty-two thousand, thirteen".

Divisors: 1 29 1108424897 32144322013