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1380900 = 223524603
BaseRepresentation
bin101010001001000100100
32121011020110
411101020210
5323142100
645333020
714510643
oct5211044
92534213
101380900
11863544
12567170
13394701
1427d35a
151c4250
hex151224

1380900 has 36 divisors (see below), whose sum is σ = 3996272. Its totient is φ = 368160.

The previous prime is 1380889. The next prime is 1380913. The reversal of 1380900 is 90831.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2002 + ... + 2601.

21380900 is an apocalyptic number.

1380900 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1380900 is an abundant number, since it is smaller than the sum of its proper divisors (2615372).

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

1380900 is a wasteful number, since it uses less digits than its factorization.

1380900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4620 (or 4613 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 21.

The square root of 1380900 is about 1175.1170154500. The cubic root of 1380900 is about 111.3578258551.

The spelling of 1380900 in words is "one million, three hundred eighty thousand, nine hundred".

Divisors: 1 2 3 4 5 6 10 12 15 20 25 30 50 60 75 100 150 300 4603 9206 13809 18412 23015 27618 46030 55236 69045 92060 115075 138090 230150 276180 345225 460300 690450 1380900