Search a number
-
+
27850980 = 22352292027
BaseRepresentation
bin110101000111…
…1100011100100
31221101222100210
41222033203210
524112212410
62432535420
7455505123
oct152174344
957358323
1027850980
11147a2943
1293b1570
135a01a91
1439adaba
1526a2220
hex1a8f8e4

27850980 has 48 divisors (see below), whose sum is σ = 78361920. Its totient is φ = 7390848.

The previous prime is 27850969. The next prime is 27850987. The reversal of 27850980 is 8905872.

It is not an unprimeable number, because it can be changed into a prime (27850987) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 12727 + ... + 14753.

It is an arithmetic number, because the mean of its divisors is an integer number (1632540).

Almost surely, 227850980 is an apocalyptic number.

27850980 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

27850980 is an abundant number, since it is smaller than the sum of its proper divisors (50510940).

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

27850980 is a wasteful number, since it uses less digits than its factorization.

27850980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2268 (or 2266 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 39.

The square root of 27850980 is about 5277.4027703028. The cubic root of 27850980 is about 303.1192333193.

The spelling of 27850980 in words is "twenty-seven million, eight hundred fifty thousand, nine hundred eighty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 229 458 687 916 1145 1374 2027 2290 2748 3435 4054 4580 6081 6870 8108 10135 12162 13740 20270 24324 30405 40540 60810 121620 464183 928366 1392549 1856732 2320915 2785098 4641830 5570196 6962745 9283660 13925490 27850980