Search a number
-
+
61086363580 = 22511225242299
BaseRepresentation
bin111000111001000001…
…111110111110111100
312211200012202210102101
4320321001332332330
52000101102113310
644021312434444
74261530344314
oct707101767674
9184605683371
1061086363580
11239a7729100
12ba09848a24
1359b6845088
142d56c82444
1518c7ce343a
hexe3907efbc

61086363580 has 36 divisors (see below), whose sum is σ = 141003487800. Its totient is φ = 22213222240.

The previous prime is 61086363529. The next prime is 61086363593. The reversal of 61086363580 is 8536368016.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 61086363580.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12618730 + ... + 12623569.

It is an arithmetic number, because the mean of its divisors is an integer number (3916763550).

Almost surely, 261086363580 is an apocalyptic number.

It is an amenable number.

61086363580 is an abundant number, since it is smaller than the sum of its proper divisors (79917124220).

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

61086363580 is a wasteful number, since it uses less digits than its factorization.

61086363580 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25242330 (or 25242317 counting only the distinct ones).

The product of its (nonzero) digits is 622080, while the sum is 46.

The spelling of 61086363580 in words is "sixty-one billion, eighty-six million, three hundred sixty-three thousand, five hundred eighty".

Divisors: 1 2 4 5 10 11 20 22 44 55 110 121 220 242 484 605 1210 2420 25242299 50484598 100969196 126211495 252422990 277665289 504845980 555330578 1110661156 1388326445 2776652890 3054318179 5553305780 6108636358 12217272716 15271590895 30543181790 61086363580