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13701245780 = 22537154911953
BaseRepresentation
bin11001100001010100…
…00110101101010100
31022100212022101211102
430300222012231110
5211030004331110
610143321125232
7663346444655
oct146052065524
938325271742
1013701245780
1158a0aa5822
1227a4629818
1313a4759131
1493d94952c
15552cbd5a5
hex330a86b54

13701245780 has 48 divisors (see below), whose sum is σ = 29571805200. Its totient is φ = 5328488448.

The previous prime is 13701245771. The next prime is 13701245791. The reversal of 13701245780 is 8754210731.

It can be written as a sum of positive squares in 8 ways, for example, as 1281926416 + 12419319364 = 35804^2 + 111442^2 .

It is a congruent number.

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, 1140284 + ... + 1152236.

It is an arithmetic number, because the mean of its divisors is an integer number (616079275).

Almost surely, 213701245780 is an apocalyptic number.

13701245780 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13701245780, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14785902600).

13701245780 is an abundant number, since it is smaller than the sum of its proper divisors (15870559420).

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

13701245780 is a wasteful number, since it uses less digits than its factorization.

13701245780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13548 (or 13546 counting only the distinct ones).

The product of its (nonzero) digits is 47040, while the sum is 38.

The spelling of 13701245780 in words is "thirteen billion, seven hundred one million, two hundred forty-five thousand, seven hundred eighty".

Divisors: 1 2 4 5 10 20 37 74 148 185 370 740 1549 3098 6196 7745 11953 15490 23906 30980 47812 57313 59765 114626 119530 229252 239060 286565 442261 573130 884522 1146260 1769044 2211305 4422610 8845220 18515197 37030394 74060788 92575985 185151970 370303940 685062289 1370124578 2740249156 3425311445 6850622890 13701245780