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242469 = 3229929
BaseRepresentation
bin111011001100100101
3110022121100
4323030211
530224334
65110313
72026623
oct731445
9408540
10242469
11156197
12b8399
1386496
1464513
154bc99
hex3b325

242469 has 12 divisors (see below), whose sum is σ = 362700. Its totient is φ = 155904.

The previous prime is 242467. The next prime is 242479. The reversal of 242469 is 964242.

It can be written as a sum of positive squares in 2 ways, for example, as 50625 + 191844 = 225^2 + 438^2 .

It is not a de Polignac number, because 242469 - 21 = 242467 is a prime.

It is a super-2 number, since 2×2424692 = 117582431922, which contains 22 as substring.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 242469.

It is not an unprimeable number, because it can be changed into a prime (242467) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 204 + ... + 725.

It is an arithmetic number, because the mean of its divisors is an integer number (30225).

2242469 is an apocalyptic number.

242469 is a gapful number since it is divisible by the number (29) formed by its first and last digit.

It is an amenable number.

242469 is a deficient number, since it is larger than the sum of its proper divisors (120231).

242469 is a wasteful number, since it uses less digits than its factorization.

242469 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 964 (or 961 counting only the distinct ones).

The product of its digits is 3456, while the sum is 27.

The square root of 242469 is about 492.4114133527. The cubic root of 242469 is about 62.3570278595.

The spelling of 242469 in words is "two hundred forty-two thousand, four hundred sixty-nine".

Divisors: 1 3 9 29 87 261 929 2787 8361 26941 80823 242469