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6494768409 = 34674635809
BaseRepresentation
bin1100000110001111…
…00100110100011001
3121202122001102100010
412003013210310121
5101300130042114
62552245232133
7316642422603
oct60307446431
917678042303
106494768409
1128331446a8
121313102649
137c673b83c
14458802173
152802bac59
hex1831e4d19

6494768409 has 8 divisors (see below), whose sum is σ = 8678236320. Its totient is φ = 4320573056.

The previous prime is 6494768389. The next prime is 6494768411. The reversal of 6494768409 is 9048674946.

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 6494768409 - 28 = 6494768153 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6494768419) 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, 2316504 + ... + 2319305.

It is an arithmetic number, because the mean of its divisors is an integer number (1084779540).

Almost surely, 26494768409 is an apocalyptic number.

It is an amenable number.

6494768409 is a deficient number, since it is larger than the sum of its proper divisors (2183467911).

6494768409 is a wasteful number, since it uses less digits than its factorization.

6494768409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4636279.

The product of its (nonzero) digits is 10450944, while the sum is 57.

The square root of 6494768409 is about 80590.1260018869. The cubic root of 6494768409 is about 1865.7547524356.

The spelling of 6494768409 in words is "six billion, four hundred ninety-four million, seven hundred sixty-eight thousand, four hundred nine".

Divisors: 1 3 467 1401 4635809 13907427 2164922803 6494768409