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11948993 = 72243857
BaseRepresentation
bin101101100101…
…001111000001
3211111001221022
4231211033001
511024331433
61104035225
7203364500
oct55451701
924431838
1011948993
116821501
124002b15
132624a14
141830837
1510b0698
hexb653c1

11948993 has 6 divisors (see below), whose sum is σ = 13899906. Its totient is φ = 10241952.

The previous prime is 11948971. The next prime is 11949001. The reversal of 11948993 is 39984911.

11948993 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 10549504 + 1399489 = 3248^2 + 1183^2 .

It is not a de Polignac number, because 11948993 - 28 = 11948737 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11948953) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 121880 + ... + 121977.

It is an arithmetic number, because the mean of its divisors is an integer number (2316651).

Almost surely, 211948993 is an apocalyptic number.

It is an amenable number.

11948993 is a deficient number, since it is larger than the sum of its proper divisors (1950913).

11948993 is an equidigital number, since it uses as much as digits as its factorization.

11948993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 243871 (or 243864 counting only the distinct ones).

The product of its digits is 69984, while the sum is 44.

The square root of 11948993 is about 3456.7315487321. The cubic root of 11948993 is about 228.6180076018.

The spelling of 11948993 in words is "eleven million, nine hundred forty-eight thousand, nine hundred ninety-three".

Divisors: 1 7 49 243857 1706999 11948993