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11999748 = 223999979
BaseRepresentation
bin101101110001…
…101000000100
3211120122120010
4231301220010
511032442443
61105110220
7203665455
oct55615004
924518503
1011999748
116856652
124028370
132641b57
14184512c
1510c0733
hexb71a04

11999748 has 12 divisors (see below), whose sum is σ = 27999440. Its totient is φ = 3999912.

The previous prime is 11999747. The next prime is 11999749. The reversal of 11999748 is 84799911.

It is an interprime number because it is at equal distance from previous prime (11999747) and next prime (11999749).

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 11999697 and 11999706.

It is not an unprimeable number, because it can be changed into a prime (11999747) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 499978 + ... + 500001.

Almost surely, 211999748 is an apocalyptic number.

It is an amenable number.

11999748 is an abundant number, since it is smaller than the sum of its proper divisors (15999692).

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

11999748 is a wasteful number, since it uses less digits than its factorization.

11999748 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 999986 (or 999984 counting only the distinct ones).

The product of its digits is 163296, while the sum is 48.

The square root of 11999748 is about 3464.0652418798. The cubic root of 11999748 is about 228.9412458995.

The spelling of 11999748 in words is "eleven million, nine hundred ninety-nine thousand, seven hundred forty-eight".

Divisors: 1 2 3 4 6 12 999979 1999958 2999937 3999916 5999874 11999748