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149824 = 262341
BaseRepresentation
bin100100100101000000
321121112001
4210211000
514243244
63113344
71162543
oct444500
9247461
10149824
11a2624
1272854
135326c
143c85a
152e5d4
hex24940

149824 has 14 divisors (see below), whose sum is σ = 297434. Its totient is φ = 74880.

The previous prime is 149803. The next prime is 149827. The reversal of 149824 is 428941.

It can be written as a sum of positive squares in only one way, i.e., 135424 + 14400 = 368^2 + 120^2 .

It is a junction number, because it is equal to n+sod(n) for n = 149792 and 149801.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149827) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1107 + ... + 1234.

2149824 is an apocalyptic number.

It is an amenable number.

149824 is a deficient number, since it is larger than the sum of its proper divisors (147610).

149824 is an equidigital number, since it uses as much as digits as its factorization.

149824 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2353 (or 2343 counting only the distinct ones).

The product of its digits is 2304, while the sum is 28.

The square root of 149824 is about 387.0710529089. The cubic root of 149824 is about 53.1121394475.

The spelling of 149824 in words is "one hundred forty-nine thousand, eight hundred twenty-four".

Divisors: 1 2 4 8 16 32 64 2341 4682 9364 18728 37456 74912 149824