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42794525 = 5217100693
BaseRepresentation
bin1010001100111…
…1111000011101
32222112012001102
42203033320131
541423411100
64125122445
71026514244
oct243177035
988465042
1042794525
112217a184
12123b9425
138b34807
14597d95b
153b54cd5
hex28cfe1d

42794525 has 12 divisors (see below), whose sum is σ = 56187252. Its totient is φ = 32221440.

The previous prime is 42794519. The next prime is 42794527. The reversal of 42794525 is 52549724.

It can be written as a sum of positive squares in 6 ways, for example, as 466489 + 42328036 = 683^2 + 6506^2 .

It is not a de Polignac number, because 42794525 - 26 = 42794461 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42794527) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 49922 + ... + 50771.

It is an arithmetic number, because the mean of its divisors is an integer number (4682271).

Almost surely, 242794525 is an apocalyptic number.

It is an amenable number.

42794525 is a deficient number, since it is larger than the sum of its proper divisors (13392727).

42794525 is a wasteful number, since it uses less digits than its factorization.

42794525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100720 (or 100715 counting only the distinct ones).

The product of its digits is 100800, while the sum is 38.

The square root of 42794525 is about 6541.7524410513. The cubic root of 42794525 is about 349.7808832592.

The spelling of 42794525 in words is "forty-two million, seven hundred ninety-four thousand, five hundred twenty-five".

Divisors: 1 5 17 25 85 425 100693 503465 1711781 2517325 8558905 42794525