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270380 = 225111229
BaseRepresentation
bin1000010000000101100
3111201220002
41002000230
532123010
65443432
72204165
oct1020054
9451802
10270380
11175160
12110578
13960b6
147076c
15551a5
hex4202c

270380 has 24 divisors (see below), whose sum is σ = 619920. Its totient is φ = 98240.

The previous prime is 270379. The next prime is 270407. The reversal of 270380 is 83072.

270380 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 395 + ... + 834.

It is an arithmetic number, because the mean of its divisors is an integer number (25830).

2270380 is an apocalyptic number.

270380 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

270380 is an abundant number, since it is smaller than the sum of its proper divisors (349540).

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

270380 is a wasteful number, since it uses less digits than its factorization.

270380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1249 (or 1247 counting only the distinct ones).

The product of its (nonzero) digits is 336, while the sum is 20.

The square root of 270380 is about 519.9807688752. The cubic root of 270380 is about 64.6633481605.

Adding to 270380 its sum of digits (20), we get a square (270400 = 5202).

The spelling of 270380 in words is "two hundred seventy thousand, three hundred eighty".

Divisors: 1 2 4 5 10 11 20 22 44 55 110 220 1229 2458 4916 6145 12290 13519 24580 27038 54076 67595 135190 270380