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75079225 = 521317107127
BaseRepresentation
bin1000111100110…
…01111000111001
312020021102100001
410132121320321
5123210013400
611241113001
71601106604
oct436317071
9166242301
1075079225
1139420151
1221188761
13127296a0
149d8533b
1568d0a6a
hex4799e39

75079225 has 48 divisors (see below), whose sum is σ = 107993088. Its totient is φ = 51287040.

The previous prime is 75079201. The next prime is 75079229. The reversal of 75079225 is 52297057.

It is not a de Polignac number, because 75079225 - 221 = 72982073 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (75079229) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 591112 + ... + 591238.

It is an arithmetic number, because the mean of its divisors is an integer number (2249856).

Almost surely, 275079225 is an apocalyptic number.

It is an amenable number.

75079225 is a deficient number, since it is larger than the sum of its proper divisors (32913863).

75079225 is a wasteful number, since it uses less digits than its factorization.

75079225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 274 (or 269 counting only the distinct ones).

The product of its (nonzero) digits is 44100, while the sum is 37.

The square root of 75079225 is about 8664.8268880573. The cubic root of 75079225 is about 421.8647714027.

The spelling of 75079225 in words is "seventy-five million, seventy-nine thousand, two hundred twenty-five".

Divisors: 1 5 13 17 25 65 85 107 127 221 325 425 535 635 1105 1391 1651 1819 2159 2675 3175 5525 6955 8255 9095 10795 13589 23647 28067 34775 41275 45475 53975 67945 118235 140335 176657 231013 339725 591175 701675 883285 1155065 3003169 4416425 5775325 15015845 75079225