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42925 = 5217101
BaseRepresentation
bin1010011110101101
32011212211
422132231
52333200
6530421
7236101
oct123655
964784
1042925
112a283
1220a11
13166cc
1411901
15caba
hexa7ad

42925 has 12 divisors (see below), whose sum is σ = 56916. Its totient is φ = 32000.

The previous prime is 42923. The next prime is 42929. The reversal of 42925 is 52924.

42925 = 12 + 22 + ... + 502.

It is a happy number.

42925 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 6 ways, for example, as 3721 + 39204 = 61^2 + 198^2 .

It is not a de Polignac number, because 42925 - 21 = 42923 is a prime.

42925 is strictly pandigital in base 6.

It is a plaindrome in base 13.

It is a junction number, because it is equal to n+sod(n) for n = 42896 and 42905.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42923) 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, 375 + ... + 475.

It is an arithmetic number, because the mean of its divisors is an integer number (4743).

242925 is an apocalyptic number.

42925 is the 147-th centered square number.

It is an amenable number.

42925 is a deficient number, since it is larger than the sum of its proper divisors (13991).

42925 is a wasteful number, since it uses less digits than its factorization.

42925 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128 (or 123 counting only the distinct ones).

The product of its digits is 720, while the sum is 22.

The square root of 42925 is about 207.1834935510. The cubic root of 42925 is about 35.0136001568.

Subtracting 42925 from its reverse (52924), we obtain a palindrome (9999).

It can be divided in two parts, 429 and 25, that added together give a palindrome (454).

The spelling of 42925 in words is "forty-two thousand, nine hundred twenty-five".

Divisors: 1 5 17 25 85 101 425 505 1717 2525 8585 42925