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268364880 = 24335717749
BaseRepresentation
bin11111111111011…
…10110001010000
3200200222100102000
433333232301100
51022200134010
642343554000
76436030620
oct1777566120
9620870360
10268364880
11128537563
1275a5b900
13437a27b4
14278da880
15188607c0
hexffeec50

268364880 has 160 divisors (see below), whose sum is σ = 1056480000. Its totient is φ = 61337088.

The previous prime is 268364857. The next prime is 268364903. The reversal of 268364880 is 88463862.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (268364857) and next prime (268364903).

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a nialpdrome in base 16.

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, 6246 + ... + 23994.

It is an arithmetic number, because the mean of its divisors is an integer number (6603000).

Almost surely, 2268364880 is an apocalyptic number.

268364880 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 268364880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (528240000).

268364880 is an abundant number, since it is smaller than the sum of its proper divisors (788115120).

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

268364880 is a wasteful number, since it uses less digits than its factorization.

268364880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17778 (or 17766 counting only the distinct ones).

The product of its (nonzero) digits is 442368, while the sum is 45.

The square root of 268364880 is about 16381.8460498199. The cubic root of 268364880 is about 645.0230386579.

The spelling of 268364880 in words is "two hundred sixty-eight million, three hundred sixty-four thousand, eight hundred eighty".

Divisors: 1 2 3 4 5 6 7 8 9 10 12 14 15 16 18 20 21 24 27 28 30 35 36 40 42 45 48 54 56 60 63 70 72 80 84 90 105 108 112 120 126 135 140 144 168 180 189 210 216 240 252 270 280 315 336 360 378 420 432 504 540 560 630 720 756 840 945 1008 1080 1260 1512 1680 1890 2160 2520 3024 3780 5040 7560 15120 17749 35498 53247 70996 88745 106494 124243 141992 159741 177490 212988 248486 266235 283984 319482 354980 372729 425976 479223 496972 532470 621215 638964 709960 745458 798705 851952 958446 993944 1064940 1118187 1242430 1277928 1419920 1490916 1597410 1863645 1916892 1987888 2129880 2236374 2396115 2484860 2555856 2981832 3194820 3354561 3727290 3833784 4259760 4472748 4792230 4969720 5590935 5963664 6389640 6709122 7454580 7667568 8945496 9584460 9939440 11181870 12779280 13418244 14909160 16772805 17890992 19168920 22363740 26836488 29818320 33545610 38337840 44727480 53672976 67091220 89454960 134182440 268364880