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149293 = 236491
BaseRepresentation
bin100100011100101101
321120210101
4210130231
514234133
63111101
71161154
oct443455
9246711
10149293
11a2191
1272491
1352c51
143c59b
152e37d
hex2472d

149293 has 4 divisors (see below), whose sum is σ = 155808. Its totient is φ = 142780.

The previous prime is 149287. The next prime is 149297. The reversal of 149293 is 392941.

It is a happy number.

149293 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: 392941 = 443887.

It is a cyclic number.

It is not a de Polignac number, because 149293 - 29 = 148781 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149297) 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, 3223 + ... + 3268.

It is an arithmetic number, because the mean of its divisors is an integer number (38952).

2149293 is an apocalyptic number.

It is an amenable number.

149293 is a deficient number, since it is larger than the sum of its proper divisors (6515).

149293 is an equidigital number, since it uses as much as digits as its factorization.

149293 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6514.

The product of its digits is 1944, while the sum is 28.

The square root of 149293 is about 386.3845234996. The cubic root of 149293 is about 53.0493192276.

It can be divided in two parts, 1 and 49293, that added together give a palindrome (49294).

The spelling of 149293 in words is "one hundred forty-nine thousand, two hundred ninety-three".

Divisors: 1 23 6491 149293