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171093157 = 1910198837
BaseRepresentation
bin10100011001010…
…10110010100101
3102220221102200121
422030222302211
5322244440112
624551041541
74145160604
oct1214526245
9386842617
10171093157
1188639904
12493702b1
13295a5a71
1418a19a3b
1510049407
hexa32aca5

171093157 has 8 divisors (see below), whose sum is σ = 180295200. Its totient is φ = 161910864.

The previous prime is 171093101. The next prime is 171093161. The reversal of 171093157 is 751390171.

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 171093157 - 27 = 171093029 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 (171063157) 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, 14943 + ... + 23779.

It is an arithmetic number, because the mean of its divisors is an integer number (22536900).

Almost surely, 2171093157 is an apocalyptic number.

It is an amenable number.

171093157 is a deficient number, since it is larger than the sum of its proper divisors (9202043).

171093157 is a wasteful number, since it uses less digits than its factorization.

171093157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9875.

The product of its (nonzero) digits is 6615, while the sum is 34.

The square root of 171093157 is about 13080.2582925568. The cubic root of 171093157 is about 555.1506849457.

The spelling of 171093157 in words is "one hundred seventy-one million, ninety-three thousand, one hundred fifty-seven".

Divisors: 1 19 1019 8837 19361 167903 9004903 171093157