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164065055 = 57111313253
BaseRepresentation
bin10011100011101…
…10111100011111
3102102201100221112
421301312330133
5314000040210
624140252235
74031346530
oct1161667437
9372640845
10164065055
1184679560
1246b4107b
1327cb4b1b
1417b0a687
15e60bd05
hex9c76f1f

164065055 has 32 divisors (see below), whose sum is σ = 247408128. Its totient is φ = 101462400.

The previous prime is 164065009. The next prime is 164065061. The reversal of 164065055 is 550560461.

It is not a de Polignac number, because 164065055 - 216 = 163999519 is a prime.

It is a Smith number, since the sum of its digits (32) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 48809 + ... + 52061.

It is an arithmetic number, because the mean of its divisors is an integer number (7731504).

Almost surely, 2164065055 is an apocalyptic number.

164065055 is a deficient number, since it is larger than the sum of its proper divisors (83343073).

164065055 is a wasteful number, since it uses less digits than its factorization.

164065055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3407.

The product of its (nonzero) digits is 18000, while the sum is 32.

The square root of 164065055 is about 12808.7881940486. The cubic root of 164065055 is about 547.4427342925.

The spelling of 164065055 in words is "one hundred sixty-four million, sixty-five thousand, fifty-five".

Divisors: 1 5 7 11 35 55 77 131 385 655 917 1441 3253 4585 7205 10087 16265 22771 35783 50435 113855 178915 250481 426143 1252405 2130715 2983001 4687573 14915005 23437865 32813011 164065055