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164083291 = 1107114821
BaseRepresentation
bin10011100011110…
…11011001011011
3102102202021221221
421301323121123
5314001131131
624140512511
74031453641
oct1161733133
9372667857
10164083291
1184691229
1246b4b737
1327cc0208
1417b13191
15e612411
hex9c7b65b

164083291 has 4 divisors (see below), whose sum is σ = 164109184. Its totient is φ = 164057400.

The previous prime is 164083277. The next prime is 164083301. The reversal of 164083291 is 192380461.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 164083291 - 211 = 164081243 is a prime.

It is the 12810-th Hogben number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (164083891) by changing a digit.

It is a nontrivial repunit in base 12809.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3661 + ... + 18481.

It is an arithmetic number, because the mean of its divisors is an integer number (41027296).

Almost surely, 2164083291 is an apocalyptic number.

164083291 is a deficient number, since it is larger than the sum of its proper divisors (25893).

164083291 is a wasteful number, since it uses less digits than its factorization.

164083291 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25892.

The product of its (nonzero) digits is 10368, while the sum is 34.

The square root of 164083291 is about 12809.5000292751. The cubic root of 164083291 is about 547.4630164825.

The spelling of 164083291 in words is "one hundred sixty-four million, eighty-three thousand, two hundred ninety-one".

Divisors: 1 11071 14821 164083291