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238828 = 2259707
BaseRepresentation
bin111010010011101100
3110010121111
4322103230
530120303
65041404
72013202
oct722354
9403544
10238828
11153487
12b6264
1384925
1463072
154ab6d
hex3a4ec

238828 has 6 divisors (see below), whose sum is σ = 417956. Its totient is φ = 119412.

The previous prime is 238801. The next prime is 238829. The reversal of 238828 is 828832.

It is a self number, because there is not a number n which added to its sum of digits gives 238828.

It is not an unprimeable number, because it can be changed into a prime (238829) by changing a digit.

238828 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 29850 + ... + 29857.

2238828 is an apocalyptic number.

It is an amenable number.

238828 is a deficient number, since it is larger than the sum of its proper divisors (179128).

238828 is a wasteful number, since it uses less digits than its factorization.

238828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59711 (or 59709 counting only the distinct ones).

The product of its digits is 6144, while the sum is 31.

The square root of 238828 is about 488.7003171679. The cubic root of 238828 is about 62.0433273282.

The spelling of 238828 in words is "two hundred thirty-eight thousand, eight hundred twenty-eight".

Divisors: 1 2 4 59707 119414 238828