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173042201 = 1710178953
BaseRepresentation
bin10100101000001…
…10101000011001
3110001121110021102
422110012220121
5323244322301
625100521145
74200556133
oct1224065031
9401543242
10173042201
1189750192
1249b501b5
1329b08c47
1418da6053
15102d1b6b
hexa506a19

173042201 has 4 divisors (see below), whose sum is σ = 183221172. Its totient is φ = 162863232.

The previous prime is 173042171. The next prime is 173042213. The reversal of 173042201 is 102240371.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 102240371 = 223458477.

It can be written as a sum of positive squares in 2 ways, for example, as 59598400 + 113443801 = 7720^2 + 10651^2 .

It is a cyclic number.

It is not a de Polignac number, because 173042201 - 26 = 173042137 is a prime.

It is not an unprimeable number, because it can be changed into a prime (173042251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5089460 + ... + 5089493.

It is an arithmetic number, because the mean of its divisors is an integer number (45805293).

Almost surely, 2173042201 is an apocalyptic number.

It is an amenable number.

173042201 is a deficient number, since it is larger than the sum of its proper divisors (10178971).

173042201 is a wasteful number, since it uses less digits than its factorization.

173042201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10178970.

The product of its (nonzero) digits is 336, while the sum is 20.

The square root of 173042201 is about 13154.5505814528. The cubic root of 173042201 is about 557.2507694388.

Adding to 173042201 its reverse (102240371), we get a palindrome (275282572).

The spelling of 173042201 in words is "one hundred seventy-three million, forty-two thousand, two hundred one".

Divisors: 1 17 10178953 173042201