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214491042 = 23215537673
BaseRepresentation
bin11001100100011…
…01111110100010
3112221121021101200
430302031332202
5414402203132
633141142030
75213100213
oct1462157642
9487537350
10214491042
11100090327
125b9ba916
133558c09c
14206b540a
1513c6cd7c
hexcc8dfa2

214491042 has 24 divisors (see below), whose sum is σ = 465090444. Its totient is φ = 71441664.

The previous prime is 214491041. The next prime is 214491061. The reversal of 214491042 is 240194412.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 208831401 + 5659641 = 14451^2 + 2379^2 .

It is a junction number, because it is equal to n+sod(n) for n = 214490997 and 214491015.

It is not an unprimeable number, because it can be changed into a prime (214491041) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 24118 + ... + 31790.

Almost surely, 2214491042 is an apocalyptic number.

214491042 is an abundant number, since it is smaller than the sum of its proper divisors (250599402).

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

214491042 is a wasteful number, since it uses less digits than its factorization.

214491042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9234 (or 9231 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

The square root of 214491042 is about 14645.5126916063. The cubic root of 214491042 is about 598.5995504449.

The spelling of 214491042 in words is "two hundred fourteen million, four hundred ninety-one thousand, forty-two".

Divisors: 1 2 3 6 9 18 1553 3106 4659 7673 9318 13977 15346 23019 27954 46038 69057 138114 11916169 23832338 35748507 71497014 107245521 214491042