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52958000721 = 3171038392171
BaseRepresentation
bin110001010100100010…
…101111011001010001
312001200201211011210010
4301110202233121101
51331424222010341
640154545425133
73553230402363
oct612442573121
9161621734703
1052958000721
112050645784a
12a31b63b1a9
134cbc83a702
1427c5522d33
15159e3de716
hexc548af651

52958000721 has 8 divisors (see below), whose sum is σ = 74764236384. Its totient is φ = 33228549440.

The previous prime is 52958000699. The next prime is 52958000723. The reversal of 52958000721 is 12700085925.

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 52958000721 - 223 = 52949612113 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 52958000721.

It is not an unprimeable number, because it can be changed into a prime (52958000723) 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, 519196035 + ... + 519196136.

It is an arithmetic number, because the mean of its divisors is an integer number (9345529548).

Almost surely, 252958000721 is an apocalyptic number.

52958000721 is a gapful number since it is divisible by the number (51) formed by its first and last digit.

It is an amenable number.

52958000721 is a deficient number, since it is larger than the sum of its proper divisors (21806235663).

52958000721 is a wasteful number, since it uses less digits than its factorization.

52958000721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1038392191.

The product of its (nonzero) digits is 50400, while the sum is 39.

The spelling of 52958000721 in words is "fifty-two billion, nine hundred fifty-eight million, seven hundred twenty-one", and thus it is an aban number.

Divisors: 1 3 17 51 1038392171 3115176513 17652666907 52958000721