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11869993 = 31715393
BaseRepresentation
bin101101010001…
…111100101001
3211100001120101
4231101330221
511014314433
61102225401
7202615252
oct55217451
924301511
1011869993
116778113
123b85261
1325c7a85
14180db29
15109707d
hexb51f29

11869993 has 8 divisors (see below), whose sum is σ = 12427776. Its totient is φ = 11323200.

The previous prime is 11869981. The next prime is 11869997. The reversal of 11869993 is 39996811.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-11869993 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11869997) 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 7 ways as a sum of consecutive naturals, for example, 496 + ... + 4897.

It is an arithmetic number, because the mean of its divisors is an integer number (1553472).

Almost surely, 211869993 is an apocalyptic number.

It is an amenable number.

11869993 is a deficient number, since it is larger than the sum of its proper divisors (557783).

11869993 is an equidigital number, since it uses as much as digits as its factorization.

11869993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5495.

The product of its digits is 104976, while the sum is 46.

The square root of 11869993 is about 3445.2856195097. The cubic root of 11869993 is about 228.1130620637.

The spelling of 11869993 in words is "eleven million, eight hundred sixty-nine thousand, nine hundred ninety-three".

Divisors: 1 31 71 2201 5393 167183 382903 11869993