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52131130 = 255213113
BaseRepresentation
bin1100011011011…
…1010100111010
310122002112110121
43012313110322
5101321144010
65101203454
71202051542
oct306672472
9118075417
1052131130
1127476987
121556058a
13aa5342c
146cd0322
15489b3da
hex31b753a

52131130 has 8 divisors (see below), whose sum is σ = 93836052. Its totient is φ = 20852448.

The previous prime is 52131091. The next prime is 52131139. The reversal of 52131130 is 3113125.

It can be written as a sum of positive squares in 2 ways, for example, as 47348161 + 4782969 = 6881^2 + 2187^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (52131139) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2606547 + ... + 2606566.

Almost surely, 252131130 is an apocalyptic number.

52131130 is a deficient number, since it is larger than the sum of its proper divisors (41704922).

52131130 is a wasteful number, since it uses less digits than its factorization.

52131130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5213120.

The product of its (nonzero) digits is 90, while the sum is 16.

The square root of 52131130 is about 7220.1890556965. The cubic root of 52131130 is about 373.5645985971.

Adding to 52131130 its reverse (3113125), we get a palindrome (55244255).

The spelling of 52131130 in words is "fifty-two million, one hundred thirty-one thousand, one hundred thirty".

Divisors: 1 2 5 10 5213113 10426226 26065565 52131130