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40130282 = 223578513
BaseRepresentation
bin1001100100010…
…1011011101010
32210111211101202
42121011123222
540233132112
63552044202
7665046623
oct231053352
983454352
1040130282
112071a525
1211533662
138410c3a
145488a4a
1537ca6c2
hex26456ea

40130282 has 8 divisors (see below), whose sum is σ = 60228036. Its totient is φ = 20054272.

The previous prime is 40130281. The next prime is 40130323. The reversal of 40130282 is 28203104.

40130282 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 39300361 + 829921 = 6269^2 + 911^2 .

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

It is a super-2 number, since 2×401302822 = 3220879066799048, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (40130281) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 458 + ... + 8970.

Almost surely, 240130282 is an apocalyptic number.

40130282 is a deficient number, since it is larger than the sum of its proper divisors (20097754).

40130282 is a wasteful number, since it uses less digits than its factorization.

40130282 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10872.

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 40130282 is about 6334.8466437634. The cubic root of 40130282 is about 342.3660854278.

Adding to 40130282 its reverse (28203104), we get a palindrome (68333386).

The spelling of 40130282 in words is "forty million, one hundred thirty thousand, two hundred eighty-two".

Divisors: 1 2 2357 4714 8513 17026 20065141 40130282