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40130783 = 711521179
BaseRepresentation
bin1001100100010…
…1100011011111
32210111212002022
42121011203133
540233141113
63552050355
7665051240
oct231054337
983455068
1040130783
112071a940
12115339bb
138411234
145488cc7
1537ca908
hex26458df

40130783 has 8 divisors (see below), whose sum is σ = 50033280. Its totient is φ = 31270680.

The previous prime is 40130747. The next prime is 40130803. The reversal of 40130783 is 38703104.

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

It is not a de Polignac number, because 40130783 - 26 = 40130719 is a prime.

It is a super-2 number, since 2×401307832 = 3220959488386178, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40130383) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 260513 + ... + 260666.

It is an arithmetic number, because the mean of its divisors is an integer number (6254160).

Almost surely, 240130783 is an apocalyptic number.

40130783 is a deficient number, since it is larger than the sum of its proper divisors (9902497).

40130783 is a wasteful number, since it uses less digits than its factorization.

40130783 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 521197.

The product of its (nonzero) digits is 2016, while the sum is 26.

The square root of 40130783 is about 6334.8861868229. The cubic root of 40130783 is about 342.3675101598.

Adding to 40130783 its reverse (38703104), we get a palindrome (78833887).

The spelling of 40130783 in words is "forty million, one hundred thirty thousand, seven hundred eighty-three".

Divisors: 1 7 11 77 521179 3648253 5732969 40130783