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1422880 = 2558893
BaseRepresentation
bin101011011011000100000
32200021211021
411123120200
5331013010
650255224
715044224
oct5333040
92607737
101422880
11892038
12587514
133aa854
14290784
151d18da
hex15b620

1422880 has 24 divisors (see below), whose sum is σ = 3361932. Its totient is φ = 569088.

The previous prime is 1422877. The next prime is 1422899. The reversal of 1422880 is 882241.

It can be written as a sum of positive squares in 2 ways, for example, as 1317904 + 104976 = 1148^2 + 324^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4287 + ... + 4606.

21422880 is an apocalyptic number.

1422880 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1422880 is an abundant number, since it is smaller than the sum of its proper divisors (1939052).

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

1422880 is an equidigital number, since it uses as much as digits as its factorization.

1422880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8908 (or 8900 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 25.

The square root of 1422880 is about 1192.8453378372. The cubic root of 1422880 is about 112.4750232618.

The spelling of 1422880 in words is "one million, four hundred twenty-two thousand, eight hundred eighty".

Divisors: 1 2 4 5 8 10 16 20 32 40 80 160 8893 17786 35572 44465 71144 88930 142288 177860 284576 355720 711440 1422880