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168171071 = 1916095501
BaseRepresentation
bin10100000011000…
…01011000111111
3102201102222100012
422001201120333
5321022433241
624404253435
74111300445
oct1201413077
9381388305
10168171071
1186a23462
12483a127b
1328ac1a13
1418498b95
15eb6d6eb
hexa06163f

168171071 has 8 divisors (see below), whose sum is σ = 177164400. Its totient is φ = 159192000.

The previous prime is 168171043. The next prime is 168171077. The reversal of 168171071 is 170171861.

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 168171071 - 210 = 168170047 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (168171077) by changing a digit.

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, 27821 + ... + 33321.

It is an arithmetic number, because the mean of its divisors is an integer number (22145550).

Almost surely, 2168171071 is an apocalyptic number.

168171071 is a deficient number, since it is larger than the sum of its proper divisors (8993329).

168171071 is a wasteful number, since it uses less digits than its factorization.

168171071 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7129.

The product of its (nonzero) digits is 2352, while the sum is 32.

The square root of 168171071 is about 12968.0789248061. The cubic root of 168171071 is about 551.9720621844.

The spelling of 168171071 in words is "one hundred sixty-eight million, one hundred seventy-one thousand, seventy-one".

Divisors: 1 19 1609 5501 30571 104519 8851109 168171071