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164171288 = 23311036427
BaseRepresentation
bin10011100100100…
…00111000011000
3102102220202200002
421302100320120
5314011440123
624142432132
74032301331
oct1162207030
9372822602
10164171288
1184741356
1246b92648
1328021298
1417b37288
15e62d528
hex9c90e18

164171288 has 32 divisors (see below), whose sum is σ = 320885760. Its totient is φ = 78654240.

The previous prime is 164171281. The next prime is 164171297. The reversal of 164171288 is 882171461.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164171281) 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, 22331 + ... + 28757.

It is an arithmetic number, because the mean of its divisors is an integer number (10027680).

Almost surely, 2164171288 is an apocalyptic number.

It is an amenable number.

164171288 is a deficient number, since it is larger than the sum of its proper divisors (156714472).

164171288 is a wasteful number, since it uses less digits than its factorization.

164171288 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6567 (or 6563 counting only the distinct ones).

The product of its digits is 21504, while the sum is 38.

The square root of 164171288 is about 12812.9344023920. The cubic root of 164171288 is about 547.5608661647.

The spelling of 164171288 in words is "one hundred sixty-four million, one hundred seventy-one thousand, two hundred eighty-eight".

Divisors: 1 2 4 8 31 62 103 124 206 248 412 824 3193 6386 6427 12772 12854 25544 25708 51416 199237 398474 661981 796948 1323962 1593896 2647924 5295848 20521411 41042822 82085644 164171288