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6480890943 = 317433929287
BaseRepresentation
bin1100000100100101…
…01000110000111111
3121201122221101000220
412002102220300333
5101233102002233
62551031552423
7316413443532
oct60222506077
917648841026
106480890943
11282632631a
12130a52b713
137c38c0117
14456a2ca19
1527de78eb3
hex1824a8c3f

6480890943 has 16 divisors (see below), whose sum is σ = 9151914240. Its totient is φ = 4065365376.

The previous prime is 6480890929. The next prime is 6480890947. The reversal of 6480890943 is 3490980846.

It is a happy number.

It is not a de Polignac number, because 6480890943 - 28 = 6480890687 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6480890947) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 206646 + ... + 235932.

It is an arithmetic number, because the mean of its divisors is an integer number (571994640).

Almost surely, 26480890943 is an apocalyptic number.

6480890943 is a deficient number, since it is larger than the sum of its proper divisors (2671023297).

6480890943 is a wasteful number, since it uses less digits than its factorization.

6480890943 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33646.

The product of its (nonzero) digits is 1492992, while the sum is 51.

The square root of 6480890943 is about 80503.9809139896. The cubic root of 6480890943 is about 1864.4249430842.

The spelling of 6480890943 in words is "six billion, four hundred eighty million, eight hundred ninety thousand, nine hundred forty-three".

Divisors: 1 3 17 51 4339 13017 29287 73763 87861 221289 497879 1493637 127076293 381228879 2160296981 6480890943