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74230 = 2513571
BaseRepresentation
bin10010000111110110
310202211021
4102013312
54333410
61331354
7426262
oct220766
9122737
1074230
1150852
1236b5a
1327a30
141d0a2
1516eda
hex121f6

74230 has 16 divisors (see below), whose sum is σ = 144144. Its totient is φ = 27360.

The previous prime is 74219. The next prime is 74231. The reversal of 74230 is 3247.

Adding to 74230 its reverse (3247), we get a palindrome (77477).

It can be divided in two parts, 74 and 230, that multiplied together give a triangular number (17020 = T184).

It is a super-4 number, since 4×742304 (a number of 21 digits) contains 4444 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.

74230 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 in 7 ways as a sum of consecutive naturals, for example, 156 + ... + 415.

It is an arithmetic number, because the mean of its divisors is an integer number (9009).

274230 is an apocalyptic number.

74230 is a deficient number, since it is larger than the sum of its proper divisors (69914).

74230 is a wasteful number, since it uses less digits than its factorization.

74230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 591.

The product of its (nonzero) digits is 168, while the sum is 16.

The square root of 74230 is about 272.4518306050. The cubic root of 74230 is about 42.0268158306.

The spelling of 74230 in words is "seventy-four thousand, two hundred thirty".

Divisors: 1 2 5 10 13 26 65 130 571 1142 2855 5710 7423 14846 37115 74230