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3280470 = 235432543
BaseRepresentation
bin1100100000111001010110
320011122221220
430200321112
51314433340
6154151210
736612024
oct14407126
96148856
103280470
111940736
121122506
138ab20b
14615714
1544bed0
hex320e56

3280470 has 32 divisors (see below), whose sum is σ = 8059392. Its totient is φ = 854112.

The previous prime is 3280469. The next prime is 3280471. The reversal of 3280470 is 740823.

It is an interprime number because it is at equal distance from previous prime (3280469) and next prime (3280471).

It is a super-2 number, since 2×32804702 = 21522966841800, which contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 3280470.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3280471) 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, 19 + ... + 2561.

It is an arithmetic number, because the mean of its divisors is an integer number (251856).

Almost surely, 23280470 is an apocalyptic number.

3280470 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 3280470, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4029696).

3280470 is an abundant number, since it is smaller than the sum of its proper divisors (4778922).

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

3280470 is a wasteful number, since it uses less digits than its factorization.

3280470 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2596.

The product of its (nonzero) digits is 1344, while the sum is 24.

The square root of 3280470 is about 1811.2067800226. The cubic root of 3280470 is about 148.5862732596.

The spelling of 3280470 in words is "three million, two hundred eighty thousand, four hundred seventy".

Divisors: 1 2 3 5 6 10 15 30 43 86 129 215 258 430 645 1290 2543 5086 7629 12715 15258 25430 38145 76290 109349 218698 328047 546745 656094 1093490 1640235 3280470