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52021353131 = 1141115346681
BaseRepresentation
bin110000011100101101…
…101101101010101011
311222021110100112211122
4300130231231222223
51323014431300011
635522010045455
73521065130366
oct603455555253
9158243315748
1052021353131
1120075774630
12a0b9a1988b
134ba0782377
142736d870dd
1515470743db
hexc1cb6daab

52021353131 has 8 divisors (see below), whose sum is σ = 58134727728. Its totient is φ = 46138672000.

The previous prime is 52021353017. The next prime is 52021353133. The reversal of 52021353131 is 13135312025.

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

It is a cyclic number.

It is not a de Polignac number, because 52021353131 - 210 = 52021352107 is a prime.

It is a super-2 number, since 2×520213531312 (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 52021353131.

It is not an unprimeable number, because it can be changed into a prime (52021353133) 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, 57672890 + ... + 57673791.

It is an arithmetic number, because the mean of its divisors is an integer number (7266840966).

Almost surely, 252021353131 is an apocalyptic number.

52021353131 is a deficient number, since it is larger than the sum of its proper divisors (6113374597).

52021353131 is a wasteful number, since it uses less digits than its factorization.

52021353131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115346733.

The product of its (nonzero) digits is 2700, while the sum is 26.

Adding to 52021353131 its reverse (13135312025), we get a palindrome (65156665156).

The spelling of 52021353131 in words is "fifty-two billion, twenty-one million, three hundred fifty-three thousand, one hundred thirty-one".

Divisors: 1 11 41 451 115346681 1268813491 4729213921 52021353131