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52517000909 = 1931361199933
BaseRepresentation
bin110000111010010000…
…011101011011001101
312000120000000001202202
4300322100131123031
51330023323012114
640043113331245
73536264066552
oct607220353315
9160500001682
1052517000909
11202aa52909a
12a217a06b25
134c4c372489
142782b28a29
15157582ccde
hexc3a41d6cd

52517000909 has 8 divisors (see below), whose sum is σ = 52828160952. Its totient is φ = 52206243840.

The previous prime is 52517000891. The next prime is 52517000959. The reversal of 52517000909 is 90900071525.

52517000909 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 2339656900 + 50177344009 = 48370^2 + 224003^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-52517000909 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52517000959) 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, 162707 + ... + 362639.

It is an arithmetic number, because the mean of its divisors is an integer number (6603520119).

Almost surely, 252517000909 is an apocalyptic number.

It is an amenable number.

52517000909 is a deficient number, since it is larger than the sum of its proper divisors (311160043).

52517000909 is a wasteful number, since it uses less digits than its factorization.

52517000909 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 201487.

The product of its (nonzero) digits is 28350, while the sum is 38.

The spelling of 52517000909 in words is "fifty-two billion, five hundred seventeen million, nine hundred nine", and thus it is an aban number.

Divisors: 1 193 1361 199933 262673 38587069 272108813 52517000909