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75525130480 = 245944064131
BaseRepresentation
bin100011001010110100…
…1100000100011110000
321012221110212011000211
41012111221200203300
52214133413133410
654410141353504
75312404005532
oct1062551404360
9235843764024
1075525130480
112a036a70408
1212779268894
137178019a27
143926731852
151e706e668a
hex1195a608f0

75525130480 has 20 divisors (see below), whose sum is σ = 175595928552. Its totient is φ = 30210052160.

The previous prime is 75525130459. The next prime is 75525130481. The reversal of 75525130480 is 8403152557.

It is a tau number, because it is divible by the number of its divisors (20).

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75525130481) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 472031986 + ... + 472032145.

Almost surely, 275525130480 is an apocalyptic number.

It is an amenable number.

75525130480 is an abundant number, since it is smaller than the sum of its proper divisors (100070798072).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

75525130480 is a wasteful number, since it uses less digits than its factorization.

75525130480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 944064144 (or 944064138 counting only the distinct ones).

The product of its (nonzero) digits is 168000, while the sum is 40.

The spelling of 75525130480 in words is "seventy-five billion, five hundred twenty-five million, one hundred thirty thousand, four hundred eighty".

Divisors: 1 2 4 5 8 10 16 20 40 80 944064131 1888128262 3776256524 4720320655 7552513048 9440641310 15105026096 18881282620 37762565240 75525130480