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164206020 = 223511248797
BaseRepresentation
bin10011100100110…
…01010111000100
3102102222112022110
421302121113010
5314014043040
624143301020
74032504516
oct1162312704
9372875273
10164206020
1184765460
1246baa770
1328034034
1417b45bb6
15e638980
hex9c995c4

164206020 has 48 divisors (see below), whose sum is σ = 501576768. Its totient is φ = 39807360.

The previous prime is 164206013. The next prime is 164206057. The reversal of 164206020 is 20602461.

It is a happy number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 123739 + ... + 125058.

It is an arithmetic number, because the mean of its divisors is an integer number (10449516).

Almost surely, 2164206020 is an apocalyptic number.

164206020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

164206020 is an abundant number, since it is smaller than the sum of its proper divisors (337370748).

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

164206020 is a wasteful number, since it uses less digits than its factorization.

164206020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 248820 (or 248818 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 164206020 is about 12814.2896798847. The cubic root of 164206020 is about 547.5994773479.

Adding to 164206020 its reverse (20602461), we get a palindrome (184808481).

The spelling of 164206020 in words is "one hundred sixty-four million, two hundred six thousand, twenty".

Divisors: 1 2 3 4 5 6 10 11 12 15 20 22 30 33 44 55 60 66 110 132 165 220 330 660 248797 497594 746391 995188 1243985 1492782 2487970 2736767 2985564 3731955 4975940 5473534 7463910 8210301 10947068 13683835 14927820 16420602 27367670 32841204 41051505 54735340 82103010 164206020