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40130215 = 59078849
BaseRepresentation
bin1001100100010…
…1011010100111
32210111211022021
42121011122213
540233131330
63552044011
7665046466
oct231053247
983454267
1040130215
112071a474
1211533607
138410bb8
1454889dd
1537ca67a
hex26456a7

40130215 has 8 divisors (see below), whose sum is σ = 48214800. Its totient is φ = 32065152.

The previous prime is 40130201. The next prime is 40130221. The reversal of 40130215 is 51203104.

40130215 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 40130215 - 27 = 40130087 is a prime.

It is a super-2 number, since 2×401302152 = 3220868311892450, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 111 + ... + 8959.

It is an arithmetic number, because the mean of its divisors is an integer number (6026850).

Almost surely, 240130215 is an apocalyptic number.

40130215 is a deficient number, since it is larger than the sum of its proper divisors (8084585).

40130215 is an equidigital number, since it uses as much as digits as its factorization.

40130215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9761.

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 40130215 is about 6334.8413555511. The cubic root of 40130215 is about 342.3658948938.

Adding to 40130215 its reverse (51203104), we get a palindrome (91333319).

The spelling of 40130215 in words is "forty million, one hundred thirty thousand, two hundred fifteen".

Divisors: 1 5 907 4535 8849 44245 8026043 40130215