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75298728953 = 7149191377981
BaseRepresentation
bin100011000100000100…
…1110110101111111001
321012100200211202112002
41012020021312233321
52213202433311303
654331453030345
75303654431010
oct1061011665771
9235320752462
1075298728953
1129a30195608
12127154853b5
13714014a626
143904639a77
151e5a8c4788
hex1188276bf9

75298728953 has 16 divisors (see below), whose sum is σ = 87087052800. Its totient is φ = 63772785600.

The previous prime is 75298728941. The next prime is 75298729001. The reversal of 75298728953 is 35982789257.

It is a cyclic number.

It is not a de Polignac number, because 75298728953 - 212 = 75298724857 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 75298728953.

It is not an unprimeable number, because it can be changed into a prime (75298728913) 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 15 ways as a sum of consecutive naturals, for example, 10223 + ... + 388203.

It is an arithmetic number, because the mean of its divisors is an integer number (5442940800).

Almost surely, 275298728953 is an apocalyptic number.

It is an amenable number.

75298728953 is a deficient number, since it is larger than the sum of its proper divisors (11788323847).

75298728953 is a wasteful number, since it uses less digits than its factorization.

75298728953 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 378328.

The product of its digits is 76204800, while the sum is 65.

The spelling of 75298728953 in words is "seventy-five billion, two hundred ninety-eight million, seven hundred twenty-eight thousand, nine hundred fifty-three".

Divisors: 1 7 149 191 1043 1337 28459 199213 377981 2645867 56319169 72194371 394234183 505360597 10756961279 75298728953