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6491030 = 2572131019
BaseRepresentation
bin11000110000101110010110
3110012210000112
4120300232112
53130203110
6351043022
7106113200
oct30605626
913183015
106491030
113733897
122210472
131463660
14c0d770
15883405
hex630b96

6491030 has 48 divisors (see below), whose sum is σ = 14651280. Its totient is φ = 2052288.

The previous prime is 6491011. The next prime is 6491039. The reversal of 6491030 is 301946.

It is a junction number, because it is equal to n+sod(n) for n = 6490987 and 6491005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6491039) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5861 + ... + 6879.

It is an arithmetic number, because the mean of its divisors is an integer number (305235).

Almost surely, 26491030 is an apocalyptic number.

6491030 is an abundant number, since it is smaller than the sum of its proper divisors (8160250).

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

6491030 is a wasteful number, since it uses less digits than its factorization.

6491030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1053 (or 1046 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 23.

The square root of 6491030 is about 2547.7499877343. The cubic root of 6491030 is about 186.5396705640.

Adding to 6491030 its reverse (301946), we get a palindrome (6792976).

The spelling of 6491030 in words is "six million, four hundred ninety-one thousand, thirty".

Divisors: 1 2 5 7 10 13 14 26 35 49 65 70 91 98 130 182 245 455 490 637 910 1019 1274 2038 3185 5095 6370 7133 10190 13247 14266 26494 35665 49931 66235 71330 92729 99862 132470 185458 249655 463645 499310 649103 927290 1298206 3245515 6491030