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3280530 = 235119941
BaseRepresentation
bin1100100000111010010010
320011200001010
430200322102
51314434110
6154151350
736612141
oct14407222
96150033
103280530
111940790
121122556
138ab256
14615758
1544c020
hex320e92

3280530 has 32 divisors (see below), whose sum is σ = 8589888. Its totient is φ = 795200.

The previous prime is 3280523. The next prime is 3280549. The reversal of 3280530 is 350823.

It is a plaindrome in base 12.

It is a junction number, because it is equal to n+sod(n) for n = 3280497 and 3280506.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4641 + ... + 5300.

It is an arithmetic number, because the mean of its divisors is an integer number (268434).

Almost surely, 23280530 is an apocalyptic number.

3280530 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

3280530 is an abundant number, since it is smaller than the sum of its proper divisors (5309358).

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

3280530 is a wasteful number, since it uses less digits than its factorization.

3280530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9962.

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 3280530 is about 1811.2233434891. The cubic root of 3280530 is about 148.5871791381.

The spelling of 3280530 in words is "three million, two hundred eighty thousand, five hundred thirty".

Divisors: 1 2 3 5 6 10 11 15 22 30 33 55 66 110 165 330 9941 19882 29823 49705 59646 99410 109351 149115 218702 298230 328053 546755 656106 1093510 1640265 3280530