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13146738486 = 2371723977041
BaseRepresentation
bin11000011111001101…
…10100111100110110
31020221012220111211020
430033212310330312
5203411031112421
610012312122010
7643534301430
oct141746647466
936835814736
1013146738486
115636a9a232
12266a996306
1313168cb1cb
148ca045650
1551e289dc6
hex30f9b4f36

13146738486 has 64 divisors (see below), whose sum is σ = 31950858240. Its totient is φ = 3520419840.

The previous prime is 13146738467. The next prime is 13146738487. The reversal of 13146738486 is 68483764131.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13146738487) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 132126 + ... + 209166.

It is an arithmetic number, because the mean of its divisors is an integer number (499232160).

Almost surely, 213146738486 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13146738486, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15975429120).

13146738486 is an abundant number, since it is smaller than the sum of its proper divisors (18804119754).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13146738486 is a wasteful number, since it uses less digits than its factorization.

13146738486 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77309.

The product of its digits is 2322432, while the sum is 51.

The spelling of 13146738486 in words is "thirteen billion, one hundred forty-six million, seven hundred thirty-eight thousand, four hundred eighty-six".

Divisors: 1 2 3 6 7 14 17 21 34 42 51 102 119 238 239 357 478 714 717 1434 1673 3346 4063 5019 8126 10038 12189 24378 28441 56882 77041 85323 154082 170646 231123 462246 539287 1078574 1309697 1617861 2619394 3235722 3929091 7858182 9167879 18335758 18412799 27503637 36825598 55007274 55238397 110476794 128889593 257779186 313017583 386668779 626035166 773337558 939052749 1878105498 2191123081 4382246162 6573369243 13146738486