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52123130 = 255212313
BaseRepresentation
bin1100011011010…
…1010111111010
310122002010111022
43012311113322
5101320420010
65101102442
71202016323
oct306652772
9118063438
1052123130
1127470974
1215557a22
13aa4c8b7
146ccb44a
154898d55
hex31b55fa

52123130 has 8 divisors (see below), whose sum is σ = 93821652. Its totient is φ = 20849248.

The previous prime is 52123111. The next prime is 52123133. The reversal of 52123130 is 3132125.

It can be written as a sum of positive squares in 2 ways, for example, as 51998521 + 124609 = 7211^2 + 353^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 52123099 and 52123108.

It is not an unprimeable number, because it can be changed into a prime (52123133) 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, 2606147 + ... + 2606166.

Almost surely, 252123130 is an apocalyptic number.

52123130 is a deficient number, since it is larger than the sum of its proper divisors (41698522).

52123130 is a wasteful number, since it uses less digits than its factorization.

52123130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5212320.

The product of its (nonzero) digits is 180, while the sum is 17.

The square root of 52123130 is about 7219.6350323268. The cubic root of 52123130 is about 373.5454886483.

Adding to 52123130 its reverse (3132125), we get a palindrome (55255255).

The spelling of 52123130 in words is "fifty-two million, one hundred twenty-three thousand, one hundred thirty".

Divisors: 1 2 5 10 5212313 10424626 26061565 52123130