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13013043044 = 22431095411283
BaseRepresentation
bin11000001111010001…
…10100011101100100
31020120220100002011012
430013220310131210
5203122314334134
65551134401352
7640322020001
oct140750643544
936526302135
1013013043044
115578583931
122632060258
1312c4cba691
148b63a28a8
1551267b6ce
hex307a34764

13013043044 has 48 divisors (see below), whose sum is σ = 23578040640. Its totient is φ = 6280364160.

The previous prime is 13013043037. The next prime is 13013043077. The reversal of 13013043044 is 44034031031.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10142027 + ... + 10143309.

It is an arithmetic number, because the mean of its divisors is an integer number (491209180).

Almost surely, 213013043044 is an apocalyptic number.

It is an amenable number.

13013043044 is a deficient number, since it is larger than the sum of its proper divisors (10564997596).

13013043044 is a wasteful number, since it uses less digits than its factorization.

13013043044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1980 (or 1978 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 23.

Adding to 13013043044 its reverse (44034031031), we get a palindrome (57047074075).

The spelling of 13013043044 in words is "thirteen billion, thirteen million, forty-three thousand, forty-four".

Divisors: 1 2 4 43 86 109 172 218 436 541 1082 1283 2164 2566 4687 5132 9374 18748 23263 46526 55169 58969 93052 110338 117938 139847 220676 235876 279694 559388 694103 1388206 2535667 2776412 5071334 6013421 10142668 12026842 24053684 29846429 59692858 75657227 119385716 151314454 302628908 3253260761 6506521522 13013043044