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288950220 = 223351341161
BaseRepresentation
bin10001001110010…
…000011111001100
3202010201012012000
4101032100133030
51042432401340
644401112300
710106015316
oct2116203714
9663635160
10288950220
11139117639
1280928690
1347b2c480
142a5387b6
151a579d30
hex113907cc

288950220 has 96 divisors (see below), whose sum is σ = 968130240. Its totient is φ = 71124480.

The previous prime is 288950209. The next prime is 288950231. The reversal of 288950220 is 22059882.

It is an interprime number because it is at equal distance from previous prime (288950209) and next prime (288950231).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 13561 + ... + 27600.

It is an arithmetic number, because the mean of its divisors is an integer number (10084690).

Almost surely, 2288950220 is an apocalyptic number.

288950220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

288950220 is an abundant number, since it is smaller than the sum of its proper divisors (679180020).

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

288950220 is a wasteful number, since it uses less digits than its factorization.

288950220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41192 (or 41184 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 36.

The square root of 288950220 is about 16998.5358192993. The cubic root of 288950220 is about 661.1109388905.

The spelling of 288950220 in words is "two hundred eighty-eight million, nine hundred fifty thousand, two hundred twenty".

Divisors: 1 2 3 4 5 6 9 10 12 13 15 18 20 26 27 30 36 39 45 52 54 60 65 78 90 108 117 130 135 156 180 195 234 260 270 351 390 468 540 585 702 780 1170 1404 1755 2340 3510 7020 41161 82322 123483 164644 205805 246966 370449 411610 493932 535093 617415 740898 823220 1070186 1111347 1234830 1481796 1605279 1852245 2140372 2222694 2469660 2675465 3210558 3704490 4445388 4815837 5350930 5556735 6421116 7408980 8026395 9631674 10701860 11113470 14447511 16052790 19263348 22226940 24079185 28895022 32105580 48158370 57790044 72237555 96316740 144475110 288950220