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238983 = 3372153
BaseRepresentation
bin111010010110000111
3110010211020
4322112013
530121413
65042223
72013513
oct722607
9403736
10238983
11153608
12b6373
1384a14
1463143
154ac23
hex3a587

238983 has 8 divisors (see below), whose sum is σ = 327408. Its totient is φ = 154944.

The previous prime is 238967. The next prime is 238991. The reversal of 238983 is 389832.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 238983 - 24 = 238967 is a prime.

It is a super-2 number, since 2×2389832 = 114225748578, which contains 22 as substring.

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

238983 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (238943) 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, 966 + ... + 1187.

It is an arithmetic number, because the mean of its divisors is an integer number (40926).

2238983 is an apocalyptic number.

238983 is a deficient number, since it is larger than the sum of its proper divisors (88425).

238983 is a wasteful number, since it uses less digits than its factorization.

238983 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2193.

The product of its digits is 10368, while the sum is 33.

The square root of 238983 is about 488.8588753413. The cubic root of 238983 is about 62.0567465198.

It can be divided in two parts, 238 and 983, that added together give a palindrome (1221).

The spelling of 238983 in words is "two hundred thirty-eight thousand, nine hundred eighty-three".

Divisors: 1 3 37 111 2153 6459 79661 238983