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64350446243 = 443753719273
BaseRepresentation
bin111011111011100101…
…011110001010100011
320011002200201101001212
4323323211132022203
52023242203234433
645321233220335
74435443524306
oct737345361243
9204080641055
1064350446243
1125322170786
121057aa016ab
1360b6b5cc35
14318658cb3d
151a1964dd48
hexefb95e2a3

64350446243 has 8 divisors (see below), whose sum is σ = 64507610928. Its totient is φ = 64193336064.

The previous prime is 64350446233. The next prime is 64350446249. The reversal of 64350446243 is 34264405346.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 64350446243 - 24 = 64350446227 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 64350446243.

It is not an unprimeable number, because it can be changed into a prime (64350446249) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3329255 + ... + 3348527.

It is an arithmetic number, because the mean of its divisors is an integer number (8063451366).

Almost surely, 264350446243 is an apocalyptic number.

64350446243 is a deficient number, since it is larger than the sum of its proper divisors (157164685).

64350446243 is a wasteful number, since it uses less digits than its factorization.

64350446243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27253.

The product of its (nonzero) digits is 829440, while the sum is 41.

The spelling of 64350446243 in words is "sixty-four billion, three hundred fifty million, four hundred forty-six thousand, two hundred forty-three".

Divisors: 1 443 7537 19273 3338891 8537939 145260601 64350446243