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11683405 = 57132911
BaseRepresentation
bin101100100100…
…011001001101
3210222120121201
4230210121031
510442332110
61054225501
7201210256
oct54443115
923876551
1011683405
11665aa08
123ab5291
132560b76
1417a1b2d
15105bb3a
hexb2464d

11683405 has 8 divisors (see below), whose sum is σ = 14217984. Its totient is φ = 9214800.

The previous prime is 11683387. The next prime is 11683447. The reversal of 11683405 is 50438611.

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

It is a de Polignac number, because none of the positive numbers 2k-11683405 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16101 + ... + 16810.

It is an arithmetic number, because the mean of its divisors is an integer number (1777248).

Almost surely, 211683405 is an apocalyptic number.

It is an amenable number.

11683405 is a deficient number, since it is larger than the sum of its proper divisors (2534579).

11683405 is an equidigital number, since it uses as much as digits as its factorization.

11683405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32987.

The product of its (nonzero) digits is 2880, while the sum is 28.

The square root of 11683405 is about 3418.0996182089. The cubic root of 11683405 is about 226.9114845690.

It can be divided in two parts, 116 and 83405, that added together give a 4-th power (83521 = 174).

The spelling of 11683405 in words is "eleven million, six hundred eighty-three thousand, four hundred five".

Divisors: 1 5 71 355 32911 164555 2336681 11683405