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164131022 = 21117438853
BaseRepresentation
bin10011100100001…
…11000011001110
3102102211201102202
421302013003032
5314004143042
624141521502
74032043046
oct1162070316
9372751382
10164131022
1184714080
1246b73292
1328008b63
1417b26726
15e621632
hex9c870ce

164131022 has 16 divisors (see below), whose sum is σ = 284377392. Its totient is φ = 70216320.

The previous prime is 164130973. The next prime is 164131027. The reversal of 164131022 is 220131461.

It is a junction number, because it is equal to n+sod(n) for n = 164130985 and 164131003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164131027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 219053 + ... + 219800.

It is an arithmetic number, because the mean of its divisors is an integer number (17773587).

Almost surely, 2164131022 is an apocalyptic number.

164131022 is a deficient number, since it is larger than the sum of its proper divisors (120246370).

164131022 is a wasteful number, since it uses less digits than its factorization.

164131022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 438883.

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 164131022 is about 12811.3630032093. The cubic root of 164131022 is about 547.5160960775.

Adding to 164131022 its reverse (220131461), we get a palindrome (384262483).

The spelling of 164131022 in words is "one hundred sixty-four million, one hundred thirty-one thousand, twenty-two".

Divisors: 1 2 11 17 22 34 187 374 438853 877706 4827383 7460501 9654766 14921002 82065511 164131022