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74238 = 2312373
BaseRepresentation
bin10010000111111110
310202211120
4102013332
54333423
61331410
7426303
oct220776
9122746
1074238
115085a
1236b66
1327a38
141d0aa
1516ee3
hex121fe

74238 has 8 divisors (see below), whose sum is σ = 148488. Its totient is φ = 24744.

The previous prime is 74231. The next prime is 74257. The reversal of 74238 is 83247.

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

74238 is an admirable number.

It is a super-2 number, since 2×742382 = 11022561288, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74231) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6181 + ... + 6192.

It is an arithmetic number, because the mean of its divisors is an integer number (18561).

274238 is an apocalyptic number.

74238 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

It is a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (74244).

74238 is a wasteful number, since it uses less digits than its factorization.

74238 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12378.

The product of its digits is 1344, while the sum is 24.

The square root of 74238 is about 272.4665117037. The cubic root of 74238 is about 42.0283255636.

Subtracting 74238 from its reverse (83247), we obtain a palindrome (9009).

It can be divided in two parts, 742 and 38, that added together give a triangular number (780 = T39).

The spelling of 74238 in words is "seventy-four thousand, two hundred thirty-eight".

Divisors: 1 2 3 6 12373 24746 37119 74238