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27380980 = 22511124459
BaseRepresentation
bin110100001110…
…0110011110100
31220112002122101
41220130303310
524002142410
62414511444
7451506634
oct150346364
956462571
1027380980
1114501810
129205584
135898b83
1438ca6c4
15260cd3a
hex1a1ccf4

27380980 has 24 divisors (see below), whose sum is σ = 62727840. Its totient is φ = 9956640.

The previous prime is 27380929. The next prime is 27380987. The reversal of 27380980 is 8908372.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27380987) 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 7 ways as a sum of consecutive naturals, for example, 62010 + ... + 62449.

It is an arithmetic number, because the mean of its divisors is an integer number (2613660).

Almost surely, 227380980 is an apocalyptic number.

27380980 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

27380980 is an abundant number, since it is smaller than the sum of its proper divisors (35346860).

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

27380980 is a wasteful number, since it uses less digits than its factorization.

27380980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124479 (or 124477 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 37.

The square root of 27380980 is about 5232.6838238136. The cubic root of 27380980 is about 301.4044518270.

It can be divided in two parts, 27380 and 980, that multiplied together give a square (26832400 = 51802).

The spelling of 27380980 in words is "twenty-seven million, three hundred eighty thousand, nine hundred eighty".

Divisors: 1 2 4 5 10 11 20 22 44 55 110 220 124459 248918 497836 622295 1244590 1369049 2489180 2738098 5476196 6845245 13690490 27380980