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149933 = 721419
BaseRepresentation
bin100100100110101101
321121200002
4210212231
514244213
63114045
71163060
oct444655
9247602
10149933
11a2713
1272925
1353324
143c8d7
152e658
hex249ad

149933 has 4 divisors (see below), whose sum is σ = 171360. Its totient is φ = 128508.

The previous prime is 149921. The next prime is 149939. The reversal of 149933 is 339941.

149933 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 339941 = 748563.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-149933 is a prime.

It is an Ulam number.

It is a plaindrome in base 16.

It is a junction number, because it is equal to n+sod(n) for n = 149896 and 149905.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149939) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10703 + ... + 10716.

It is an arithmetic number, because the mean of its divisors is an integer number (42840).

2149933 is an apocalyptic number.

It is an amenable number.

149933 is a deficient number, since it is larger than the sum of its proper divisors (21427).

149933 is an equidigital number, since it uses as much as digits as its factorization.

149933 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21426.

The product of its digits is 2916, while the sum is 29.

The square root of 149933 is about 387.2118283317. The cubic root of 149933 is about 53.1250163783.

The spelling of 149933 in words is "one hundred forty-nine thousand, nine hundred thirty-three".

Divisors: 1 7 21419 149933