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149171 = 1171191
BaseRepresentation
bin100100011010110011
321120121212
4210122303
514233141
63110335
71160621
oct443263
9246555
10149171
11a2090
12723ab
1352b89
143c511
152e2eb
hex246b3

149171 has 8 divisors (see below), whose sum is σ = 165888. Its totient is φ = 133000.

The previous prime is 149161. The next prime is 149173. The reversal of 149171 is 171941.

149171 = T26 + T27 + ... + T96.

149171 = 62 + 72 + ... + 762.

149171 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 149171 - 210 = 148147 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (149173) 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, 686 + ... + 876.

It is an arithmetic number, because the mean of its divisors is an integer number (20736).

2149171 is an apocalyptic number.

149171 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

149171 is a deficient number, since it is larger than the sum of its proper divisors (16717).

149171 is a wasteful number, since it uses less digits than its factorization.

149171 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 273.

The product of its digits is 252, while the sum is 23.

The square root of 149171 is about 386.2266174152. The cubic root of 149171 is about 53.0348649203.

The spelling of 149171 in words is "one hundred forty-nine thousand, one hundred seventy-one".

Divisors: 1 11 71 191 781 2101 13561 149171