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6305490 = 232570061
BaseRepresentation
bin11000000011011011010010
3102212100111200
4120003123102
53103233430
6343052030
7104411232
oct30033322
912770450
106305490
113617454
122141016
1313ca079
14ba1cc2
15848460
hex6036d2

6305490 has 24 divisors (see below), whose sum is σ = 16394508. Its totient is φ = 1681440.

The previous prime is 6305489. The next prime is 6305491. The reversal of 6305490 is 945036.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (6305489) and next prime (6305491).

It can be written as a sum of positive squares in 2 ways, for example, as 6066369 + 239121 = 2463^2 + 489^2 .

It is a Smith number, since the sum of its digits (27) coincides with the sum of the digits of its prime factors.

It is an alternating number because its digits alternate between even and odd.

It is not an unprimeable number, because it can be changed into a prime (6305491) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 34941 + ... + 35120.

Almost surely, 26305490 is an apocalyptic number.

6305490 is an abundant number, since it is smaller than the sum of its proper divisors (10089018).

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

6305490 is a wasteful number, since it uses less digits than its factorization.

6305490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70074 (or 70071 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 27.

The square root of 6305490 is about 2511.0734756275. The cubic root of 6305490 is about 184.7451079448.

The spelling of 6305490 in words is "six million, three hundred five thousand, four hundred ninety".

Divisors: 1 2 3 5 6 9 10 15 18 30 45 90 70061 140122 210183 350305 420366 630549 700610 1050915 1261098 2101830 3152745 6305490