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242506 = 21173151
BaseRepresentation
bin111011001101001010
3110022122201
4323031022
530230011
65110414
72030005
oct731512
9408581
10242506
11156220
12b840a
13864c4
146453c
154bcc1
hex3b34a

242506 has 16 divisors (see below), whose sum is σ = 404928. Its totient is φ = 108000.

The previous prime is 242491. The next prime is 242509. The reversal of 242506 is 605242.

It is not an unprimeable number, because it can be changed into a prime (242509) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1531 + ... + 1681.

It is an arithmetic number, because the mean of its divisors is an integer number (25308).

2242506 is an apocalyptic number.

242506 is a deficient number, since it is larger than the sum of its proper divisors (162422).

242506 is a wasteful number, since it uses less digits than its factorization.

242506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 237.

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 242506 is about 492.4489821291. The cubic root of 242506 is about 62.3601995264.

Adding to 242506 its reverse (605242), we get a palindrome (847748).

The spelling of 242506 in words is "two hundred forty-two thousand, five hundred six".

Divisors: 1 2 11 22 73 146 151 302 803 1606 1661 3322 11023 22046 121253 242506