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161068055 = 532213611
BaseRepresentation
bin10011001100110…
…11010000010111
3102020002002211112
421212123100113
5312213134210
623552125235
73664025111
oct1146332027
9366062745
10161068055
1182a118a5
1245b3681b
13274a5955
141756a3b1
15e218d05
hex999b417

161068055 has 4 divisors (see below), whose sum is σ = 193281672. Its totient is φ = 128854440.

The previous prime is 161068051. The next prime is 161068079. The reversal of 161068055 is 550860161.

It is a happy number.

161068055 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: 550860161 = 1015454061.

It is not a de Polignac number, because 161068055 - 22 = 161068051 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161068051) 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, 16106801 + ... + 16106810.

It is an arithmetic number, because the mean of its divisors is an integer number (48320418).

Almost surely, 2161068055 is an apocalyptic number.

161068055 is a deficient number, since it is larger than the sum of its proper divisors (32213617).

161068055 is an equidigital number, since it uses as much as digits as its factorization.

161068055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32213616.

The product of its (nonzero) digits is 7200, while the sum is 32.

The square root of 161068055 is about 12691.2589997998. The cubic root of 161068055 is about 544.0888233982.

The spelling of 161068055 in words is "one hundred sixty-one million, sixty-eight thousand, fifty-five".

Divisors: 1 5 32213611 161068055