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42983125 = 5497709
BaseRepresentation
bin1010001111110…
…1111011010101
32222212202202121
42203331323111
542000430000
64133135541
71031231143
oct243757325
988782677
1042983125
1122298949
121248a5b1
138b9c603
1459cc593
153b90b1a
hex28fded5

42983125 has 20 divisors (see below), whose sum is σ = 54341980. Its totient is φ = 33984000.

The previous prime is 42983119. The next prime is 42983137. The reversal of 42983125 is 52138924.

It can be written as a sum of positive squares in 10 ways, for example, as 39917124 + 3066001 = 6318^2 + 1751^2 .

It is not a de Polignac number, because 42983125 - 23 = 42983117 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 60271 + ... + 60979.

It is an arithmetic number, because the mean of its divisors is an integer number (2717099).

Almost surely, 242983125 is an apocalyptic number.

It is an amenable number.

42983125 is a deficient number, since it is larger than the sum of its proper divisors (11358855).

42983125 is an frugal number, since it uses more digits than its factorization.

42983125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 826 (or 811 counting only the distinct ones).

The product of its digits is 17280, while the sum is 34.

The square root of 42983125 is about 6556.1516913507. The cubic root of 42983125 is about 350.2939707072.

The spelling of 42983125 in words is "forty-two million, nine hundred eighty-three thousand, one hundred twenty-five".

Divisors: 1 5 25 97 125 485 625 709 2425 3545 12125 17725 60625 68773 88625 343865 443125 1719325 8596625 42983125