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11783640413 = 61971991489
BaseRepresentation
bin10101111100101110…
…00001010101011101
31010102012222221210102
422332113001111131
5143113102443123
65225140150445
7565003201526
oct127627012535
933365887712
1011783640413
114aa76154a6
12234a398425
13115a3a00bc
147dadbb84d
1548e784028
hex2be5c155d

11783640413 has 8 divisors (see below), whose sum is σ = 12100293240. Its totient is φ = 11470970880.

The previous prime is 11783640397. The next prime is 11783640431. The reversal of 11783640413 is 31404638711.

It can be written as a sum of positive squares in 4 ways, for example, as 1707094489 + 10076545924 = 41317^2 + 100382^2 .

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 11783640413 - 24 = 11783640397 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11783640433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 989828 + ... + 1001661.

It is an arithmetic number, because the mean of its divisors is an integer number (1512536655).

Almost surely, 211783640413 is an apocalyptic number.

It is an amenable number.

11783640413 is a deficient number, since it is larger than the sum of its proper divisors (316652827).

11783640413 is an equidigital number, since it uses as much as digits as its factorization.

11783640413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1991647.

The product of its (nonzero) digits is 48384, while the sum is 38.

The spelling of 11783640413 in words is "eleven billion, seven hundred eighty-three million, six hundred forty thousand, four hundred thirteen".

Divisors: 1 61 97 5917 1991489 121480829 193174433 11783640413