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63157947380 = 225111991442621
BaseRepresentation
bin111010110100100000…
…011100101111110100
320001000120211011011022
4322310200130233310
52013321413304010
645003034000312
74364053460243
oct726440345764
9201016734138
1063157947380
1124870018730
12102a7576098
135c56a93ac8
1430b205295a
151999ae5d55
hexeb481cbf4

63157947380 has 48 divisors (see below), whose sum is σ = 145416297600. Its totient is φ = 22851100800.

The previous prime is 63157947373. The next prime is 63157947449. The reversal of 63157947380 is 8374975136.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 677531 + ... + 765090.

It is an arithmetic number, because the mean of its divisors is an integer number (3029506200).

Almost surely, 263157947380 is an apocalyptic number.

It is an amenable number.

63157947380 is an abundant number, since it is smaller than the sum of its proper divisors (82258350220).

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

63157947380 is a wasteful number, since it uses less digits than its factorization.

63157947380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1442840 (or 1442838 counting only the distinct ones).

The product of its (nonzero) digits is 3810240, while the sum is 53.

The spelling of 63157947380 in words is "sixty-three billion, one hundred fifty-seven million, nine hundred forty-seven thousand, three hundred eighty".

Divisors: 1 2 4 5 10 11 20 22 44 55 110 199 220 398 796 995 1990 2189 3980 4378 8756 10945 21890 43780 1442621 2885242 5770484 7213105 14426210 15868831 28852420 31737662 63475324 79344155 158688310 287081579 317376620 574163158 1148326316 1435407895 2870815790 3157897369 5741631580 6315794738 12631589476 15789486845 31578973690 63157947380