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74027749 = 2922311447
BaseRepresentation
bin1000110100110…
…01001011100101
312011021222222111
410122121023211
5122422341444
611202401021
71556140225
oct432311345
9164258874
1074027749
1138872164
1220960171
131244bc03
149b90085
156774234
hex46992e5

74027749 has 8 divisors (see below), whose sum is σ = 76930560. Its totient is φ = 71148336.

The previous prime is 74027747. The next prime is 74027753. The reversal of 74027749 is 94772047.

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

It is a cyclic number.

It is not a de Polignac number, because 74027749 - 21 = 74027747 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74027747) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 744 + ... + 12190.

It is an arithmetic number, because the mean of its divisors is an integer number (9616320).

Almost surely, 274027749 is an apocalyptic number.

It is an amenable number.

74027749 is a deficient number, since it is larger than the sum of its proper divisors (2902811).

74027749 is a wasteful number, since it uses less digits than its factorization.

74027749 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11699.

The product of its (nonzero) digits is 98784, while the sum is 40.

The square root of 74027749 is about 8603.9379937329. The cubic root of 74027749 is about 419.8861161373.

It can be divided in two parts, 7402 and 7749, that added together give a palindrome (15151).

The spelling of 74027749 in words is "seventy-four million, twenty-seven thousand, seven hundred forty-nine".

Divisors: 1 29 223 6467 11447 331963 2552681 74027749