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74224241 = 7131942929
BaseRepresentation
bin1000110110010…
…01001001110001
312011122222111222
410123021021301
5123000133431
611210514425
71560616130
oct433111161
9164588458
1074224241
1138996853
1220a35a15
13124ba490
149c01917
1567b257b
hex46c9271

74224241 has 16 divisors (see below), whose sum is σ = 96163200. Its totient is φ = 55634688.

The previous prime is 74224237. The next prime is 74224277. The reversal of 74224241 is 14242247.

It is a cyclic number.

It is not a de Polignac number, because 74224241 - 22 = 74224237 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 74224241.

It is not an unprimeable number, because it can be changed into a prime (74224291) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19736 + ... + 23193.

It is an arithmetic number, because the mean of its divisors is an integer number (6010200).

Almost surely, 274224241 is an apocalyptic number.

It is an amenable number.

74224241 is a deficient number, since it is larger than the sum of its proper divisors (21938959).

74224241 is a wasteful number, since it uses less digits than its factorization.

74224241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42968.

The product of its digits is 3584, while the sum is 26.

The square root of 74224241 is about 8615.3491513693. The cubic root of 74224241 is about 420.2572894438.

Adding to 74224241 its reverse (14242247), we get a palindrome (88466488).

The spelling of 74224241 in words is "seventy-four million, two hundred twenty-four thousand, two hundred forty-one".

Divisors: 1 7 13 19 91 133 247 1729 42929 300503 558077 815651 3906539 5709557 10603463 74224241