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11872993 = 111975479
BaseRepresentation
bin101101010010…
…101011100001
3211100012200111
4231102223201
511014413433
61102251321
7202630066
oct55225341
924305614
1011872993
11677a3a0
123b86b41
1325c9252
141810c6d
151097dcd
hexb52ae1

11872993 has 8 divisors (see below), whose sum is σ = 13020480. Its totient is φ = 10736880.

The previous prime is 11872961. The next prime is 11873011. The reversal of 11872993 is 39927811.

11872993 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 11872993 - 25 = 11872961 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11879993) 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, 573 + ... + 4906.

It is an arithmetic number, because the mean of its divisors is an integer number (1627560).

Almost surely, 211872993 is an apocalyptic number.

It is an amenable number.

11872993 is a deficient number, since it is larger than the sum of its proper divisors (1147487).

11872993 is a wasteful number, since it uses less digits than its factorization.

11872993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5687.

The product of its digits is 27216, while the sum is 40.

The square root of 11872993 is about 3445.7209695505. The cubic root of 11872993 is about 228.1322780689.

The spelling of 11872993 in words is "eleven million, eight hundred seventy-two thousand, nine hundred ninety-three".

Divisors: 1 11 197 2167 5479 60269 1079363 11872993