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2220533280 = 253257220291
BaseRepresentation
bin1000010001011010…
…1010011000100000
312201202022210000100
42010112222120200
514021424031110
61004201422400
7106012135650
oct20426523040
95652283010
102220533280
11a3a484579
1251b79aa00
13295070724
14170ca4360
15cee25bc0
hex845aa620

2220533280 has 144 divisors (see below), whose sum is σ = 8660119104. Its totient is φ = 507548160.

The previous prime is 2220533269. The next prime is 2220533291. The reversal of 2220533280 is 823350222.

It is an interprime number because it is at equal distance from previous prime (2220533269) and next prime (2220533291).

It is a tau number, because it is divible by the number of its divisors (144).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 100066 + ... + 120225.

It is an arithmetic number, because the mean of its divisors is an integer number (60139716).

Almost surely, 22220533280 is an apocalyptic number.

2220533280 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2220533280 is an abundant number, since it is smaller than the sum of its proper divisors (6439585824).

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

2220533280 is a wasteful number, since it uses less digits than its factorization.

2220533280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 220319 (or 220308 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

The square root of 2220533280 is about 47122.5347365780. The cubic root of 2220533280 is about 1304.6251973371.

The spelling of 2220533280 in words is "two billion, two hundred twenty million, five hundred thirty-three thousand, two hundred eighty".

Divisors: 1 2 3 4 5 6 7 8 9 10 12 14 15 16 18 20 21 24 28 30 32 35 36 40 42 45 48 56 60 63 70 72 80 84 90 96 105 112 120 126 140 144 160 168 180 210 224 240 252 280 288 315 336 360 420 480 504 560 630 672 720 840 1008 1120 1260 1440 1680 2016 2520 3360 5040 10080 220291 440582 660873 881164 1101455 1321746 1542037 1762328 1982619 2202910 2643492 3084074 3304365 3524656 3965238 4405820 4626111 5286984 6168148 6608730 7049312 7710185 7930476 8811640 9252222 9913095 10573968 12336296 13217460 13878333 15420370 15860952 17623280 18504444 19826190 21147936 23130555 24672592 26434920 27756666 30840740 31721904 35246560 37008888 39652380 46261110 49345184 52869840 55513332 61681480 63443808 69391665 74017776 79304760 92522220 105739680 111026664 123362960 138783330 148035552 158609520 185044440 222053328 246725920 277566660 317219040 370088880 444106656 555133320 740177760 1110266640 2220533280