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63783061448 = 2329230792
BaseRepresentation
bin111011011001110001…
…000100011111001000
320002122011002020110012
4323121301010133020
52021111430431243
645145044211052
74415414035241
oct733161043710
9202564066405
1063783061448
112506096a127
1210440999a88
1360264437a2
143131095cc8
1519d4924d18
hexed9c447c8

63783061448 has 36 divisors (see below), whose sum is σ = 123899588865. Its totient is φ = 30781822176.

The previous prime is 63783061421. The next prime is 63783061451. The reversal of 63783061448 is 84416038736.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

63783061448 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 63745140484 + 37920964 = 252478^2 + 6158^2 .

It is an ABA number since it can be written as A⋅BA, here for A=2, B=178582.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 63783061396 and 63783061405.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 20713973 + ... + 20717051.

Almost surely, 263783061448 is an apocalyptic number.

It is an amenable number.

63783061448 is a deficient number, since it is larger than the sum of its proper divisors (60116527417).

63783061448 is an frugal number, since it uses more digits than its factorization.

63783061448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6222 (or 3110 counting only the distinct ones).

The product of its (nonzero) digits is 2322432, while the sum is 50.

Multiplying 63783061448 by its sum of digits (50), we get a square (3189153072400 = 17858202).

The spelling of 63783061448 in words is "sixty-three billion, seven hundred eighty-three million, sixty-one thousand, four hundred forty-eight".

Divisors: 1 2 4 8 29 58 116 232 841 1682 3079 3364 6158 6728 12316 24632 89291 178582 357164 714328 2589439 5178878 9480241 10357756 18960482 20715512 37920964 75841928 274926989 549853978 1099707956 2199415912 7972882681 15945765362 31891530724 63783061448