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149830 = 2514983
BaseRepresentation
bin100100100101000110
321121112021
4210211012
514243310
63113354
71162552
oct444506
9247467
10149830
11a262a
127285a
1353275
143c862
152e5da
hex24946

149830 has 8 divisors (see below), whose sum is σ = 269712. Its totient is φ = 59928.

The previous prime is 149827. The next prime is 149837. The reversal of 149830 is 38941.

149830 is nontrivially palindromic in base 11.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an alternating number because its digits alternate between odd and even.

It is a junction number, because it is equal to n+sod(n) for n = 149795 and 149804.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149837) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 7482 + ... + 7501.

It is an arithmetic number, because the mean of its divisors is an integer number (33714).

2149830 is an apocalyptic number.

149830 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

149830 is a deficient number, since it is larger than the sum of its proper divisors (119882).

149830 is a wasteful number, since it uses less digits than its factorization.

149830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14990.

The product of its (nonzero) digits is 864, while the sum is 25.

The square root of 149830 is about 387.0788033463. The cubic root of 149830 is about 53.1128484318.

Subtracting from 149830 its reverse (38941), we obtain a square (110889 = 3332).

It can be divided in two parts, 149 and 830, that added together give a palindrome (979).

The spelling of 149830 in words is "one hundred forty-nine thousand, eight hundred thirty".

Divisors: 1 2 5 10 14983 29966 74915 149830