Search a number
-
+
149705 = 579379
BaseRepresentation
bin100100100011001001
321121100122
4210203021
514242310
63113025
71162313
oct444311
9247318
10149705
11a2526
1272775
13531aa
143c7b3
152e555
hex248c9

149705 has 8 divisors (see below), whose sum is σ = 182400. Its totient is φ = 117936.

The previous prime is 149689. The next prime is 149711. The reversal of 149705 is 507941.

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 149705 - 24 = 149689 is a prime.

It is a nialpdrome in base 8.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 206 + ... + 584.

It is an arithmetic number, because the mean of its divisors is an integer number (22800).

2149705 is an apocalyptic number.

It is an amenable number.

149705 is a deficient number, since it is larger than the sum of its proper divisors (32695).

149705 is an equidigital number, since it uses as much as digits as its factorization.

149705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 463.

The product of its (nonzero) digits is 1260, while the sum is 26.

The square root of 149705 is about 386.9173038260. The cubic root of 149705 is about 53.0980740137.

The spelling of 149705 in words is "one hundred forty-nine thousand, seven hundred five".

Divisors: 1 5 79 379 395 1895 29941 149705