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168350845 = 5132590013
BaseRepresentation
bin10100000100011…
…01010001111101
3102201210002221111
422002031101331
5321044211340
624412202021
74112646535
oct1202152175
9381702844
10168350845
1187036533
1248469311
1328b557b0
14185044c5
15eba6aea
hexa08d47d

168350845 has 8 divisors (see below), whose sum is σ = 217561176. Its totient is φ = 124320576.

The previous prime is 168350839. The next prime is 168350857. The reversal of 168350845 is 548053861.

It can be written as a sum of positive squares in 4 ways, for example, as 5890329 + 162460516 = 2427^2 + 12746^2 .

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 168350845 - 215 = 168318077 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 168350798 and 168350807.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1294942 + ... + 1295071.

It is an arithmetic number, because the mean of its divisors is an integer number (27195147).

Almost surely, 2168350845 is an apocalyptic number.

It is an amenable number.

168350845 is a deficient number, since it is larger than the sum of its proper divisors (49210331).

168350845 is a wasteful number, since it uses less digits than its factorization.

168350845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2590031.

The product of its (nonzero) digits is 115200, while the sum is 40.

The square root of 168350845 is about 12975.0084778392. The cubic root of 168350845 is about 552.1686772285.

The spelling of 168350845 in words is "one hundred sixty-eight million, three hundred fifty thousand, eight hundred forty-five".

Divisors: 1 5 13 65 2590013 12950065 33670169 168350845