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164201312 = 25111932417
BaseRepresentation
bin10011100100110…
…00001101100000
3102102222021212002
421302120031200
5314013420222
624143223132
74032455012
oct1162301540
9372867762
10164201312
1184761970
1246ba7aa8
1328031b52
1417b441b2
15e637392
hex9c98360

164201312 has 48 divisors (see below), whose sum is σ = 354633552. Its totient is φ = 74219520.

The previous prime is 164201311. The next prime is 164201333. The reversal of 164201312 is 213102461.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164201311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 66728 + ... + 69144.

It is an arithmetic number, because the mean of its divisors is an integer number (7388199).

Almost surely, 2164201312 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 164201312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (177316776).

164201312 is an abundant number, since it is smaller than the sum of its proper divisors (190432240).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

164201312 is a wasteful number, since it uses less digits than its factorization.

164201312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2631 (or 2623 counting only the distinct ones).

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

The square root of 164201312 is about 12814.1059773985. The cubic root of 164201312 is about 547.5942438349.

Adding to 164201312 its reverse (213102461), we get a palindrome (377303773).

The spelling of 164201312 in words is "one hundred sixty-four million, two hundred one thousand, three hundred twelve".

Divisors: 1 2 4 8 11 16 22 32 44 88 176 193 352 386 772 1544 2123 2417 3088 4246 4834 6176 8492 9668 16984 19336 26587 33968 38672 53174 67936 77344 106348 212696 425392 466481 850784 932962 1865924 3731848 5131291 7463696 10262582 14927392 20525164 41050328 82100656 164201312