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74164828093 = 397793723537
BaseRepresentation
bin100010100010010010…
…0010111011110111101
321002102200012121221221
41011010210113132331
52203342143444333
654023145353341
75233605431416
oct1050444273675
9232380177857
1074164828093
11294a9126064
1212459798851
136cbc25a285
143837bd480d
151de1093d2d
hex11449177bd

74164828093 has 8 divisors (see below), whose sum is σ = 74364168312. Its totient is φ = 73965551616.

The previous prime is 74164828091. The next prime is 74164828109. The reversal of 74164828093 is 39082846147.

It can be written as a sum of positive squares in 4 ways, for example, as 33636293604 + 40528534489 = 183402^2 + 201317^2 .

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 74164828093 - 21 = 74164828091 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 74164828093.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74164828091) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3139221 + ... + 3162757.

It is an arithmetic number, because the mean of its divisors is an integer number (9295521039).

Almost surely, 274164828093 is an apocalyptic number.

It is an amenable number.

74164828093 is a deficient number, since it is larger than the sum of its proper divisors (199340219).

74164828093 is a wasteful number, since it uses less digits than its factorization.

74164828093 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31871.

The product of its (nonzero) digits is 2322432, while the sum is 52.

The spelling of 74164828093 in words is "seventy-four billion, one hundred sixty-four million, eight hundred twenty-eight thousand, ninety-three".

Divisors: 1 397 7937 23537 3150989 9344189 186813169 74164828093