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149268 = 22371777
BaseRepresentation
bin100100011100010100
321120202110
4210130110
514234033
63111020
71161120
oct443424
9246673
10149268
11a2169
1272470
1352c32
143c580
152e363
hex24714

149268 has 24 divisors (see below), whose sum is σ = 398272. Its totient is φ = 42624.

The previous prime is 149257. The next prime is 149269. The reversal of 149268 is 862941.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149269) by changing a digit.

149268 is an untouchable number, because it is not equal to the sum of proper divisors of any 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, 805 + ... + 972.

2149268 is an apocalyptic number.

It is an amenable number.

149268 is an abundant number, since it is smaller than the sum of its proper divisors (249004).

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

149268 is a wasteful number, since it uses less digits than its factorization.

149268 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1791 (or 1789 counting only the distinct ones).

The product of its digits is 3456, while the sum is 30.

The square root of 149268 is about 386.3521709529. The cubic root of 149268 is about 53.0463579210.

The spelling of 149268 in words is "one hundred forty-nine thousand, two hundred sixty-eight".

Divisors: 1 2 3 4 6 7 12 14 21 28 42 84 1777 3554 5331 7108 10662 12439 21324 24878 37317 49756 74634 149268