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161068153 = 433745771
BaseRepresentation
bin10011001100110…
…11010001111001
3102020002002222011
421212123101321
5312213140103
623552125521
73664025311
oct1146332171
9366062864
10161068153
1182a11984
1245b368a1
13274a59cc
141756a441
15e218d6d
hex999b479

161068153 has 4 divisors (see below), whose sum is σ = 164813968. Its totient is φ = 157322340.

The previous prime is 161068151. The next prime is 161068163. The reversal of 161068153 is 351860161.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 161068153 - 21 = 161068151 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (161068151) 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, 1872843 + ... + 1872928.

It is an arithmetic number, because the mean of its divisors is an integer number (41203492).

Almost surely, 2161068153 is an apocalyptic number.

It is an amenable number.

161068153 is a deficient number, since it is larger than the sum of its proper divisors (3745815).

161068153 is an equidigital number, since it uses as much as digits as its factorization.

161068153 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3745814.

The product of its (nonzero) digits is 4320, while the sum is 31.

The square root of 161068153 is about 12691.2628607243. The cubic root of 161068153 is about 544.0889337463.

The spelling of 161068153 in words is "one hundred sixty-one million, sixty-eight thousand, one hundred fifty-three".

Divisors: 1 43 3745771 161068153