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52072030531 = 193823327829
BaseRepresentation
bin110000011111101111…
…000010000101000011
311222101222201020011101
4300133233002011003
51323120414434111
635531020155231
73522251646043
oct603757020503
9158358636141
1052072030531
11200a1338284
12a112998b17
134bab116bb1
14273d9b9723
15154b734bc1
hexc1fbc2143

52072030531 has 8 divisors (see below), whose sum is σ = 52405592480. Its totient is φ = 51739126272.

The previous prime is 52072030519. The next prime is 52072030561. The reversal of 52072030531 is 13503027025.

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 52072030531 - 27 = 52072030403 is a prime.

It is a super-2 number, since 2×520720305312 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 52072030531.

It is not an unprimeable number, because it can be changed into a prime (52072030561) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5076 + ... + 322753.

It is an arithmetic number, because the mean of its divisors is an integer number (6550699060).

Almost surely, 252072030531 is an apocalyptic number.

52072030531 is a deficient number, since it is larger than the sum of its proper divisors (333561949).

52072030531 is a wasteful number, since it uses less digits than its factorization.

52072030531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 328845.

The product of its (nonzero) digits is 6300, while the sum is 28.

Adding to 52072030531 its reverse (13503027025), we get a palindrome (65575057556).

The spelling of 52072030531 in words is "fifty-two billion, seventy-two million, thirty thousand, five hundred thirty-one".

Divisors: 1 193 823 158839 327829 63270997 269803267 52072030531