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3230280 = 23345997
BaseRepresentation
bin1100010100101001001000
320002010010000
430110221020
51311332110
6153123000
736312504
oct14245110
96063100
103230280
111906a59
1210b9460
13891411
14601304
1543c1c0
hex314a48

3230280 has 80 divisors (see below), whose sum is σ = 10868220. Its totient is φ = 860544.

The previous prime is 3230273. The next prime is 3230299. The reversal of 3230280 is 820323.

It can be written as a sum of positive squares in 2 ways, for example, as 3175524 + 54756 = 1782^2 + 234^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 2742 + ... + 3738.

Almost surely, 23230280 is an apocalyptic number.

3230280 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3230280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5434110).

3230280 is an abundant number, since it is smaller than the sum of its proper divisors (7637940).

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

3230280 is a wasteful number, since it uses less digits than its factorization.

3230280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1020 (or 1007 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 3230280 is about 1797.2979719568. The cubic root of 3230280 is about 147.8246035155.

The spelling of 3230280 in words is "three million, two hundred thirty thousand, two hundred eighty".

Divisors: 1 2 3 4 5 6 8 9 10 12 15 18 20 24 27 30 36 40 45 54 60 72 81 90 108 120 135 162 180 216 270 324 360 405 540 648 810 997 1080 1620 1994 2991 3240 3988 4985 5982 7976 8973 9970 11964 14955 17946 19940 23928 26919 29910 35892 39880 44865 53838 59820 71784 80757 89730 107676 119640 134595 161514 179460 215352 269190 323028 358920 403785 538380 646056 807570 1076760 1615140 3230280