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238969 = 1714057
BaseRepresentation
bin111010010101111001
3110010210201
4322111321
530121334
65042201
72013463
oct722571
9403721
10238969
111535a5
12b6361
1384a03
1463133
154ac14
hex3a579

238969 has 4 divisors (see below), whose sum is σ = 253044. Its totient is φ = 224896.

The previous prime is 238967. The next prime is 238991. The reversal of 238969 is 969832.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 82944 + 156025 = 288^2 + 395^2 .

It is a cyclic number.

It is not a de Polignac number, because 238969 - 21 = 238967 is a prime.

It is a super-2 number, since 2×2389692 = 114212365922, which contains 22 as substring.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (238967) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 7012 + ... + 7045.

It is an arithmetic number, because the mean of its divisors is an integer number (63261).

2238969 is an apocalyptic number.

It is an amenable number.

238969 is a deficient number, since it is larger than the sum of its proper divisors (14075).

238969 is a wasteful number, since it uses less digits than its factorization.

238969 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14074.

The product of its digits is 23328, while the sum is 37.

The square root of 238969 is about 488.8445560707. The cubic root of 238969 is about 62.0555347022.

The spelling of 238969 in words is "two hundred thirty-eight thousand, nine hundred sixty-nine".

Divisors: 1 17 14057 238969