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240498 = 23231431
BaseRepresentation
bin111010101101110010
3110012220100
4322231302
530143443
65053230
72021106
oct725562
9405810
10240498
11154765
12b7216
138560b
1463906
154b3d3
hex3ab72

240498 has 24 divisors (see below), whose sum is σ = 539136. Its totient is φ = 77400.

The previous prime is 240491. The next prime is 240503. The reversal of 240498 is 894042.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 240498.

It is not an unprimeable number, because it can be changed into a prime (240491) by changing a digit.

240498 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 (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 343 + ... + 773.

It is an arithmetic number, because the mean of its divisors is an integer number (22464).

2240498 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 240498, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (269568).

240498 is an abundant number, since it is smaller than the sum of its proper divisors (298638).

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

240498 is a wasteful number, since it uses less digits than its factorization.

240498 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 470 (or 467 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

The square root of 240498 is about 490.4059542869. The cubic root of 240498 is about 62.1876038061.

Subtracting from 240498 its sum of digits (27), we obtain a triangular number (240471 = T693).

The spelling of 240498 in words is "two hundred forty thousand, four hundred ninety-eight".

Divisors: 1 2 3 6 9 18 31 62 93 186 279 431 558 862 1293 2586 3879 7758 13361 26722 40083 80166 120249 240498