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74283229 = 83538893
BaseRepresentation
bin1000110110101…
…11100011011101
312011202222102201
410123113203131
5123004030404
611212051501
71561253116
oct433274335
9164688381
1074283229
1138a270a9
1220a63b91
131250b297
149c1920d
1567c4ca4
hex46d78dd

74283229 has 4 divisors (see below), whose sum is σ = 74300476. Its totient is φ = 74265984.

The previous prime is 74283211. The next prime is 74283269. The reversal of 74283229 is 92238247.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 28111204 + 46172025 = 5302^2 + 6795^2 .

It is a cyclic number.

It is not a de Polignac number, because 74283229 - 213 = 74275037 is a prime.

It is a super-2 number, since 2×742832292 = 11035996221332882, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74283269) 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, 3907 + ... + 12799.

It is an arithmetic number, because the mean of its divisors is an integer number (18575119).

Almost surely, 274283229 is an apocalyptic number.

It is an amenable number.

74283229 is a deficient number, since it is larger than the sum of its proper divisors (17247).

74283229 is an equidigital number, since it uses as much as digits as its factorization.

74283229 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17246.

The product of its digits is 48384, while the sum is 37.

The square root of 74283229 is about 8618.7718962739. The cubic root of 74283229 is about 420.3685898870.

The spelling of 74283229 in words is "seventy-four million, two hundred eighty-three thousand, two hundred twenty-nine".

Divisors: 1 8353 8893 74283229