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11873993 = 193471801
BaseRepresentation
bin101101010010…
…111011001001
3211100021001112
4231102323021
511014431433
61102300105
7202633025
oct55227311
924307045
1011873993
11678011a
123b87635
1325c9841
141811385
151098348
hexb52ec9

11873993 has 8 divisors (see below), whose sum is σ = 12541920. Its totient is φ = 11210400.

The previous prime is 11873989. The next prime is 11873999. The reversal of 11873993 is 39937811.

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 11873993 - 22 = 11873989 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11873993.

It is not an unprimeable number, because it can be changed into a prime (11873999) 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, 5693 + ... + 7493.

It is an arithmetic number, because the mean of its divisors is an integer number (1567740).

Almost surely, 211873993 is an apocalyptic number.

It is an amenable number.

11873993 is a deficient number, since it is larger than the sum of its proper divisors (667927).

11873993 is a wasteful number, since it uses less digits than its factorization.

11873993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2167.

The product of its digits is 40824, while the sum is 41.

The square root of 11873993 is about 3445.8660740081. The cubic root of 11873993 is about 228.1386826847.

The spelling of 11873993 in words is "eleven million, eight hundred seventy-three thousand, nine hundred ninety-three".

Divisors: 1 19 347 1801 6593 34219 624947 11873993