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3228680 = 235713887
BaseRepresentation
bin1100010100010000001000
320002000220202
430110100020
51311304210
6153111332
736305030
oct14242010
96060822
103228680
111905834
1210b8548
13890780
146008c0
1543b9a5
hex314408

3228680 has 64 divisors (see below), whose sum is σ = 8951040. Its totient is φ = 1020672.

The previous prime is 3228661. The next prime is 3228683. The reversal of 3228680 is 868223.

It is not an unprimeable number, because it can be changed into a prime (3228683) 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, 3197 + ... + 4083.

It is an arithmetic number, because the mean of its divisors is an integer number (139860).

Almost surely, 23228680 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3228680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4475520).

3228680 is an abundant number, since it is smaller than the sum of its proper divisors (5722360).

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

3228680 is a wasteful number, since it uses less digits than its factorization.

3228680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 918 (or 914 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 29.

The square root of 3228680 is about 1796.8528042107. The cubic root of 3228680 is about 147.8001929973.

The spelling of 3228680 in words is "three million, two hundred twenty-eight thousand, six hundred eighty".

Divisors: 1 2 4 5 7 8 10 13 14 20 26 28 35 40 52 56 65 70 91 104 130 140 182 260 280 364 455 520 728 887 910 1774 1820 3548 3640 4435 6209 7096 8870 11531 12418 17740 23062 24836 31045 35480 46124 49672 57655 62090 80717 92248 115310 124180 161434 230620 248360 322868 403585 461240 645736 807170 1614340 3228680