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164130161 = 1394113417
BaseRepresentation
bin10011100100001…
…10110101110001
3102102211200020212
421302012311301
5314004131121
624141513505
74032040406
oct1162066561
9372750225
10164130161
1184713468
1246b72895
1328008650
1417b262ad
15e62125b
hex9c86d71

164130161 has 8 divisors (see below), whose sum is σ = 176956584. Its totient is φ = 151332480.

The previous prime is 164130149. The next prime is 164130167. The reversal of 164130161 is 161031461.

164130161 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 4 ways, for example, as 6150400 + 157979761 = 2480^2 + 12569^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 164130161 - 226 = 97021297 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (164130167) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5525 + ... + 18941.

It is an arithmetic number, because the mean of its divisors is an integer number (22119573).

Almost surely, 2164130161 is an apocalyptic number.

It is an amenable number.

164130161 is a deficient number, since it is larger than the sum of its proper divisors (12826423).

164130161 is a wasteful number, since it uses less digits than its factorization.

164130161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14371.

The product of its (nonzero) digits is 432, while the sum is 23.

The square root of 164130161 is about 12811.3294001833. The cubic root of 164130161 is about 547.5151386875.

The spelling of 164130161 in words is "one hundred sixty-four million, one hundred thirty thousand, one hundred sixty-one".

Divisors: 1 13 941 12233 13417 174421 12625397 164130161