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BaseRepresentation
bin101101110001…
…101011101000
3211120122212120
4231301223220
511032444401
61105111240
7203666232
oct55615350
924518776
1011999976
11685683a
124028520
132641ca1
141845252
1510c0836
hexb71ae8

11999976 has 48 divisors (see below), whose sum is σ = 31213440. Its totient is φ = 3840480.

The previous prime is 11999941. The next prime is 11999987. The reversal of 11999976 is 67999911.

It can be divided in two parts, 1199 and 9976, that added together give a triangular number (11175 = T149).

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 94425 + ... + 94551.

It is an arithmetic number, because the mean of its divisors is an integer number (650280).

Almost surely, 211999976 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11999976, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15606720).

11999976 is an abundant number, since it is smaller than the sum of its proper divisors (19213464).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11999976 is a wasteful number, since it uses less digits than its factorization.

11999976 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 294 (or 163 counting only the distinct ones).

The product of its digits is 275562, while the sum is 51.

The square root of 11999976 is about 3464.0981510344. The cubic root of 11999976 is about 228.9426958820.

The spelling of 11999976 in words is "eleven million, nine hundred ninety-nine thousand, nine hundred seventy-six".