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166114849 = 896918521
BaseRepresentation
bin10011110011010…
…11011000100001
3102120120111201211
421321223120201
5320011133344
624252230121
74054644565
oct1171533041
9376514654
10166114849
11858495aa
124776b341
1328551b14
14180c16a5
15e8b4334
hex9e6b621

166114849 has 4 divisors (see below), whose sum is σ = 166142340. Its totient is φ = 166087360.

The previous prime is 166114847. The next prime is 166114877. The reversal of 166114849 is 948411661.

166114849 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 948411661 = 1045990679.

It can be written as a sum of positive squares in 2 ways, for example, as 139074849 + 27040000 = 11793^2 + 5200^2 .

It is a cyclic number.

It is not a de Polignac number, because 166114849 - 21 = 166114847 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (166114841) 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, 292 + ... + 18229.

It is an arithmetic number, because the mean of its divisors is an integer number (41535585).

Almost surely, 2166114849 is an apocalyptic number.

It is an amenable number.

166114849 is a deficient number, since it is larger than the sum of its proper divisors (27491).

166114849 is an equidigital number, since it uses as much as digits as its factorization.

With its successor (166114850) it forms an eRAP, since the sums of their prime factors are consecutive (27490 and 27491).

166114849 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27490.

The product of its digits is 41472, while the sum is 40.

The square root of 166114849 is about 12888.5549616705. The cubic root of 166114849 is about 549.7131826862.

The spelling of 166114849 in words is "one hundred sixty-six million, one hundred fourteen thousand, eight hundred forty-nine".

Divisors: 1 8969 18521 166114849