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52131129 = 3171022179
BaseRepresentation
bin1100011011011…
…1010100111001
310122002112110120
43012313110321
5101321144004
65101203453
71202051541
oct306672471
9118075416
1052131129
1127476986
1215560589
13aa5342b
146cd0321
15489b3d9
hex31b7539

52131129 has 8 divisors (see below), whose sum is σ = 73596960. Its totient is φ = 32709696.

The previous prime is 52131091. The next prime is 52131139. The reversal of 52131129 is 92113125.

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

It is not a de Polignac number, because 52131129 - 216 = 52065593 is a prime.

It is a super-2 number, since 2×521311292 = 5435309221629282, which contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 52131099 and 52131108.

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 7 ways as a sum of consecutive naturals, for example, 511039 + ... + 511140.

It is an arithmetic number, because the mean of its divisors is an integer number (9199620).

Almost surely, 252131129 is an apocalyptic number.

It is an amenable number.

52131129 is a deficient number, since it is larger than the sum of its proper divisors (21465831).

52131129 is a wasteful number, since it uses less digits than its factorization.

52131129 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1022199.

The product of its digits is 540, while the sum is 24.

The square root of 52131129 is about 7220.1889864463. The cubic root of 52131129 is about 373.5645962084.

The spelling of 52131129 in words is "fifty-two million, one hundred thirty-one thousand, one hundred twenty-nine".

Divisors: 1 3 17 51 1022179 3066537 17377043 52131129