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164112605 = 5311058791
BaseRepresentation
bin10011100100000…
…10100011011101
3102102210210011122
421302002203131
5314003100410
624141300325
74031635256
oct1162024335
9372723148
10164112605
1184701258
1246b646a5
1328000667
1417b1db2d
15e61ae55
hex9c828dd

164112605 has 8 divisors (see below), whose sum is σ = 203288064. Its totient is φ = 127054800.

The previous prime is 164112593. The next prime is 164112607. The reversal of 164112605 is 506211461.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 164112605 - 24 = 164112589 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164112607) 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, 529241 + ... + 529550.

It is an arithmetic number, because the mean of its divisors is an integer number (25411008).

Almost surely, 2164112605 is an apocalyptic number.

It is an amenable number.

164112605 is a deficient number, since it is larger than the sum of its proper divisors (39175459).

164112605 is a wasteful number, since it uses less digits than its factorization.

164112605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1058827.

The product of its (nonzero) digits is 1440, while the sum is 26.

The square root of 164112605 is about 12810.6442070647. The cubic root of 164112605 is about 547.4956165423.

The spelling of 164112605 in words is "one hundred sixty-four million, one hundred twelve thousand, six hundred five".

Divisors: 1 5 31 155 1058791 5293955 32822521 164112605