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75022425 = 3252333433
BaseRepresentation
bin1000111100011…
…00000001011001
312020011112102100
410132030001121
5123201204200
611235554013
71600452162
oct436140131
9166145370
1075022425
1139391505
122115b909
131270988a
149d6c769
1568bdd00
hex478c059

75022425 has 18 divisors (see below), whose sum is σ = 134373902. Its totient is φ = 40011840.

The previous prime is 75022397. The next prime is 75022447. The reversal of 75022425 is 52422057.

It can be written as a sum of positive squares in 3 ways, for example, as 1971216 + 73051209 = 1404^2 + 8547^2 .

It is not a de Polignac number, because 75022425 - 215 = 74989657 is a prime.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 166492 + ... + 166941.

Almost surely, 275022425 is an apocalyptic number.

75022425 is a gapful number since it is divisible by the number (75) formed by its first and last digit.

It is an amenable number.

75022425 is a deficient number, since it is larger than the sum of its proper divisors (59351477).

75022425 is a wasteful number, since it uses less digits than its factorization.

75022425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 333449 (or 333441 counting only the distinct ones).

The product of its (nonzero) digits is 5600, while the sum is 27.

The square root of 75022425 is about 8661.5486490581. The cubic root of 75022425 is about 421.7583595236.

The spelling of 75022425 in words is "seventy-five million, twenty-two thousand, four hundred twenty-five".

Divisors: 1 3 5 9 15 25 45 75 225 333433 1000299 1667165 3000897 5001495 8335825 15004485 25007475 75022425