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74728268 = 22149125383
BaseRepresentation
bin1000111010001…
…00001101001100
312012121120220122
410131010031030
5123112301033
611225404112
71565115446
oct435041514
9165546818
1074728268
11392004aa
1221039638
1312635a14
149cd3496
156861a98
hex474434c

74728268 has 12 divisors (see below), whose sum is σ = 131653200. Its totient is φ = 37113072.

The previous prime is 74728267. The next prime is 74728289. The reversal of 74728268 is 86282747.

It is not an unprimeable number, because it can be changed into a prime (74728267) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 62096 + ... + 63287.

It is an arithmetic number, because the mean of its divisors is an integer number (10971100).

Almost surely, 274728268 is an apocalyptic number.

It is an amenable number.

74728268 is a deficient number, since it is larger than the sum of its proper divisors (56924932).

74728268 is a wasteful number, since it uses less digits than its factorization.

74728268 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125536 (or 125534 counting only the distinct ones).

The product of its digits is 301056, while the sum is 44.

The square root of 74728268 is about 8644.5513475252. The cubic root of 74728268 is about 421.2064104444.

The spelling of 74728268 in words is "seventy-four million, seven hundred twenty-eight thousand, two hundred sixty-eight".

Divisors: 1 2 4 149 298 596 125383 250766 501532 18682067 37364134 74728268