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164805119 = 167986857
BaseRepresentation
bin10011101001010…
…11100111111111
3102111002222010022
421310223213333
5314142230434
624204202355
74040551253
oct1164534777
9374088108
10164805119
1185034586
12472393bb
13281b392b
1417c60263
15e70622e
hex9d2b9ff

164805119 has 4 divisors (see below), whose sum is σ = 165792144. Its totient is φ = 163818096.

The previous prime is 164805073. The next prime is 164805131. The reversal of 164805119 is 911508461.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 164805119 - 224 = 148027903 is a prime.

It is a super-2 number, since 2×1648051192 = 54321454497208322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164802119) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 493262 + ... + 493595.

It is an arithmetic number, because the mean of its divisors is an integer number (41448036).

Almost surely, 2164805119 is an apocalyptic number.

164805119 is a deficient number, since it is larger than the sum of its proper divisors (987025).

164805119 is an equidigital number, since it uses as much as digits as its factorization.

164805119 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 987024.

The product of its (nonzero) digits is 8640, while the sum is 35.

The square root of 164805119 is about 12837.6446048331. The cubic root of 164805119 is about 548.2646338936.

The spelling of 164805119 in words is "one hundred sixty-four million, eight hundred five thousand, one hundred nineteen".

Divisors: 1 167 986857 164805119