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1422986 = 21937447
BaseRepresentation
bin101011011011010001010
32200021222012
411123122022
5331013421
650255522
715044435
oct5333212
92607865
101422986
11892124
125875a2
133aa906
1429081c
151d195b
hex15b68a

1422986 has 8 divisors (see below), whose sum is σ = 2246880. Its totient is φ = 674028.

The previous prime is 1422979. The next prime is 1422991. The reversal of 1422986 is 6892241.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a d-powerful number, because it can be written as 1 + 48 + 218 + 220 + 9 + 82 + 66 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18686 + ... + 18761.

It is an arithmetic number, because the mean of its divisors is an integer number (280860).

21422986 is an apocalyptic number.

1422986 is a deficient number, since it is larger than the sum of its proper divisors (823894).

1422986 is a wasteful number, since it uses less digits than its factorization.

1422986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37468.

The product of its digits is 6912, while the sum is 32.

The square root of 1422986 is about 1192.8897685872. The cubic root of 1422986 is about 112.4778162020.

The spelling of 1422986 in words is "one million, four hundred twenty-two thousand, nine hundred eighty-six".

Divisors: 1 2 19 38 37447 74894 711493 1422986