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242793 = 3253509
BaseRepresentation
bin111011010001101001
3110100001100
4323101221
530232133
65112013
72030565
oct732151
9410040
10242793
11156461
12b8609
1386685
14646a5
154be13
hex3b469

242793 has 12 divisors (see below), whose sum is σ = 358020. Its totient is φ = 158496.

The previous prime is 242789. The next prime is 242797. The reversal of 242793 is 397242.

It is an interprime number because it is at equal distance from previous prime (242789) and next prime (242797).

It can be written as a sum of positive squares in 2 ways, for example, as 186624 + 56169 = 432^2 + 237^2 .

It is not a de Polignac number, because 242793 - 22 = 242789 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (242797) 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, 223 + ... + 731.

It is an arithmetic number, because the mean of its divisors is an integer number (29835).

2242793 is an apocalyptic number.

It is an amenable number.

242793 is a deficient number, since it is larger than the sum of its proper divisors (115227).

242793 is a wasteful number, since it uses less digits than its factorization.

242793 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 568 (or 565 counting only the distinct ones).

The product of its digits is 3024, while the sum is 27.

The square root of 242793 is about 492.7402967081. The cubic root of 242793 is about 62.3847904252.

Subtracting 242793 from its reverse (397242), we obtain a square (154449 = 3932).

It can be divided in two parts, 242 and 793, that added together give a triangular number (1035 = T45).

The spelling of 242793 in words is "two hundred forty-two thousand, seven hundred ninety-three".

Divisors: 1 3 9 53 159 477 509 1527 4581 26977 80931 242793