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75225075 = 3521003001
BaseRepresentation
bin1000111101111…
…01011111110011
312020112211101220
410132331133303
5123224200300
611244200123
71602255042
oct436753763
9166484356
1075225075
113950a792
1221239043
131277aba3
149dc2559
15690dda0
hex47bd7f3

75225075 has 12 divisors (see below), whose sum is σ = 124372248. Its totient is φ = 40120000.

The previous prime is 75225067. The next prime is 75225077. The reversal of 75225075 is 57052257.

It is not a de Polignac number, because 75225075 - 23 = 75225067 is a prime.

It is not an unprimeable number, because it can be changed into a prime (75225077) 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 11 ways as a sum of consecutive naturals, for example, 501426 + ... + 501575.

It is an arithmetic number, because the mean of its divisors is an integer number (10364354).

Almost surely, 275225075 is an apocalyptic number.

75225075 is a gapful number since it is divisible by the number (75) formed by its first and last digit.

75225075 is a deficient number, since it is larger than the sum of its proper divisors (49147173).

75225075 is a wasteful number, since it uses less digits than its factorization.

75225075 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1003014 (or 1003009 counting only the distinct ones).

The product of its (nonzero) digits is 24500, while the sum is 33.

The square root of 75225075 is about 8673.2390143475. The cubic root of 75225075 is about 422.1377682603.

The spelling of 75225075 in words is "seventy-five million, two hundred twenty-five thousand, seventy-five".

Divisors: 1 3 5 15 25 75 1003001 3009003 5015005 15045015 25075025 75225075