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2230620 = 2235747113
BaseRepresentation
bin1000100000100101011100
311012022211120
420200211130
51032334440
6115450540
724650160
oct10404534
94168746
102230620
111293997
128b6a50
136013c2
14420ca0
152e0dd0
hex22095c

2230620 has 96 divisors (see below), whose sum is σ = 7354368. Its totient is φ = 494592.

The previous prime is 2230597. The next prime is 2230633. The reversal of 2230620 is 260322.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 2230620.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 19684 + ... + 19796.

It is an arithmetic number, because the mean of its divisors is an integer number (76608).

22230620 is an apocalyptic number.

2230620 is a gapful number since it is divisible by the number (20) 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 2230620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3677184).

2230620 is an abundant number, since it is smaller than the sum of its proper divisors (5123748).

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

2230620 is a wasteful number, since it uses less digits than its factorization.

2230620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 179 (or 177 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 15.

The square root of 2230620 is about 1493.5260292342. The cubic root of 2230620 is about 130.6597623498.

Adding to 2230620 its reverse (260322), we get a palindrome (2490942).

It can be divided in two parts, 2230 and 620, that added together give a triangular number (2850 = T75).

The spelling of 2230620 in words is "two million, two hundred thirty thousand, six hundred twenty".

Divisors: 1 2 3 4 5 6 7 10 12 14 15 20 21 28 30 35 42 47 60 70 84 94 105 113 140 141 188 210 226 235 282 329 339 420 452 470 564 565 658 678 705 791 940 987 1130 1316 1356 1410 1582 1645 1695 1974 2260 2373 2820 3164 3290 3390 3948 3955 4746 4935 5311 6580 6780 7910 9492 9870 10622 11865 15820 15933 19740 21244 23730 26555 31866 37177 47460 53110 63732 74354 79665 106220 111531 148708 159330 185885 223062 318660 371770 446124 557655 743540 1115310 2230620