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149706 = 2328317
BaseRepresentation
bin100100100011001010
321121100200
4210203022
514242311
63113030
71162314
oct444312
9247320
10149706
11a2527
1272776
13531ab
143c7b4
152e556
hex248ca

149706 has 12 divisors (see below), whose sum is σ = 324402. Its totient is φ = 49896.

The previous prime is 149689. The next prime is 149711. The reversal of 149706 is 607941.

It can be written as a sum of positive squares in only one way, i.e., 84681 + 65025 = 291^2 + 255^2 .

It is a Smith number, since the sum of its digits (27) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 149706.

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 5 ways as a sum of consecutive naturals, for example, 4141 + ... + 4176.

2149706 is an apocalyptic number.

149706 is an abundant number, since it is smaller than the sum of its proper divisors (174696).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

149706 is a wasteful number, since it uses less digits than its factorization.

149706 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8325 (or 8322 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 27.

The square root of 149706 is about 386.9185960897. The cubic root of 149706 is about 53.0981922416.

The spelling of 149706 in words is "one hundred forty-nine thousand, seven hundred six".

Divisors: 1 2 3 6 9 18 8317 16634 24951 49902 74853 149706