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164447193 = 3491111641
BaseRepresentation
bin10011100110101…
…00001111011001
3102110102210010210
421303110033121
5314044302233
624152401333
74034530611
oct1163241731
9373383123
10164447193
118490a679
12470a6249
13280b9a41
1417ba9a41
15e685163
hex9cd43d9

164447193 has 8 divisors (see below), whose sum is σ = 219711456. Its totient is φ = 109407200.

The previous prime is 164447183. The next prime is 164447207. The reversal of 164447193 is 391744461.

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

It is a cyclic number.

It is not a de Polignac number, because 164447193 - 25 = 164447161 is a prime.

It is not an unprimeable number, because it can be changed into a prime (164447183) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 54348 + ... + 57293.

It is an arithmetic number, because the mean of its divisors is an integer number (27463932).

Almost surely, 2164447193 is an apocalyptic number.

It is an amenable number.

164447193 is a deficient number, since it is larger than the sum of its proper divisors (55264263).

164447193 is a wasteful number, since it uses less digits than its factorization.

164447193 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112135.

The product of its digits is 72576, while the sum is 39.

The square root of 164447193 is about 12823.6965419492. The cubic root of 164447193 is about 547.8674366778.

The spelling of 164447193 in words is "one hundred sixty-four million, four hundred forty-seven thousand, one hundred ninety-three".

Divisors: 1 3 491 1473 111641 334923 54815731 164447193