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162134189 = 721011812
BaseRepresentation
bin10011010100111…
…11100010101101
3102022002021021222
421222133202231
5313001243224
624031033125
74006055300
oct1152374255
9368067258
10162134189
118357a8a8
124636b7a5
1327789cb9
1417766b37
15e379b5e
hex9a9f8ad

162134189 has 18 divisors (see below), whose sum is σ = 191530602. Its totient is φ = 136836000.

The previous prime is 162134179. The next prime is 162134207. The reversal of 162134189 is 981431261.

It can be written as a sum of positive squares in 3 ways, for example, as 4900 + 162129289 = 70^2 + 12733^2 .

It is not a de Polignac number, because 162134189 - 216 = 162068653 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 (162134179) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 895679 + ... + 895859.

It is an arithmetic number, because the mean of its divisors is an integer number (10640589).

Almost surely, 2162134189 is an apocalyptic number.

It is an amenable number.

162134189 is a deficient number, since it is larger than the sum of its proper divisors (29396413).

162134189 is an equidigital number, since it uses as much as digits as its factorization.

162134189 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 477 (or 289 counting only the distinct ones).

The product of its digits is 10368, while the sum is 35.

The square root of 162134189 is about 12733.1924119602. The cubic root of 162134189 is about 545.2866533437.

It can be divided in two parts, 16213 and 4189, that added together give a palindrome (20402).

The spelling of 162134189 in words is "one hundred sixty-two million, one hundred thirty-four thousand, one hundred eighty-nine".

Divisors: 1 7 49 101 181 707 1267 4949 8869 18281 32761 127967 229327 895769 1605289 3308861 23162027 162134189