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74028601 = 372298737
BaseRepresentation
bin1000110100110…
…01011000111001
312011022001011001
410122121120321
5122422403401
611202405001
71556142553
oct432313071
9164261131
1074028601
1138872869
1220960761
131244c40a
149b904d3
156774601
hex4699639

74028601 has 8 divisors (see below), whose sum is σ = 76370120. Its totient is φ = 71705088.

The previous prime is 74028599. The next prime is 74028611. The reversal of 74028601 is 10682047.

It can be written as a sum of positive squares in 4 ways, for example, as 39501225 + 34527376 = 6285^2 + 5876^2 .

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 74028601 - 21 = 74028599 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 74028601.

It is not an unprimeable number, because it can be changed into a prime (74028611) 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, 4105 + ... + 12841.

It is an arithmetic number, because the mean of its divisors is an integer number (9546265).

Almost surely, 274028601 is an apocalyptic number.

It is an amenable number.

74028601 is a deficient number, since it is larger than the sum of its proper divisors (2341519).

74028601 is a wasteful number, since it uses less digits than its factorization.

74028601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9003.

The product of its (nonzero) digits is 2688, while the sum is 28.

The square root of 74028601 is about 8603.9875058022. The cubic root of 74028601 is about 419.8877269819.

The spelling of 74028601 in words is "seventy-four million, twenty-eight thousand, six hundred one".

Divisors: 1 37 229 8473 8737 323269 2000773 74028601