Search a number
-
+
27868680 = 23325711059
BaseRepresentation
bin110101001001…
…1111000001000
31221102212122100
41222103320020
524113244210
62433153400
7455610540
oct152237010
957385570
1027868680
1114805174
1293bb860
135a09b58
1439b6320
1526a75c0
hex1a93e08

27868680 has 96 divisors (see below), whose sum is σ = 103521600. Its totient is φ = 6369408.

The previous prime is 27868679. The next prime is 27868703. The reversal of 27868680 is 8686872.

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

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, 3010 + ... + 8049.

It is an arithmetic number, because the mean of its divisors is an integer number (1078350).

Almost surely, 227868680 is an apocalyptic number.

27868680 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

27868680 is an abundant number, since it is smaller than the sum of its proper divisors (75652920).

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

27868680 is a wasteful number, since it uses less digits than its factorization.

27868680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11083 (or 11076 counting only the distinct ones).

The product of its (nonzero) digits is 258048, while the sum is 45.

The square root of 27868680 is about 5279.0794652098. The cubic root of 27868680 is about 303.1834330261.

The spelling of 27868680 in words is "twenty-seven million, eight hundred sixty-eight thousand, six hundred eighty".

Divisors: 1 2 3 4 5 6 7 8 9 10 12 14 15 18 20 21 24 28 30 35 36 40 42 45 56 60 63 70 72 84 90 105 120 126 140 168 180 210 252 280 315 360 420 504 630 840 1260 2520 11059 22118 33177 44236 55295 66354 77413 88472 99531 110590 132708 154826 165885 199062 221180 232239 265416 309652 331770 387065 398124 442360 464478 497655 619304 663540 696717 774130 796248 928956 995310 1161195 1327080 1393434 1548260 1857912 1990620 2322390 2786868 3096520 3483585 3981240 4644780 5573736 6967170 9289560 13934340 27868680