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32840230817 = 72353453889
BaseRepresentation
bin11110100101011011…
…100010011110100001
310010202200200120121002
4132211123202132201
51014224044341232
623030412041345
72241545233112
oct364533423641
9103680616532
1032840230817
1112a224aa529
126446163255
133134939c54
141837742209
15cc315db62
hex7a56e27a1

32840230817 has 4 divisors (see below), whose sum is σ = 32840757060. Its totient is φ = 32839704576.

The previous prime is 32840230793. The next prime is 32840230849. The reversal of 32840230817 is 71803204823.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 30883141696 + 1957089121 = 175736^2 + 44239^2 .

It is a cyclic number.

It is not a de Polignac number, because 32840230817 - 28 = 32840230561 is a prime.

It is a super-3 number, since 3×328402308173 (a number of 33 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (32840230877) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 154592 + ... + 299297.

It is an arithmetic number, because the mean of its divisors is an integer number (8210189265).

Almost surely, 232840230817 is an apocalyptic number.

It is an amenable number.

32840230817 is a deficient number, since it is larger than the sum of its proper divisors (526243).

32840230817 is an equidigital number, since it uses as much as digits as its factorization.

32840230817 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 526242.

The product of its (nonzero) digits is 64512, while the sum is 38.

The spelling of 32840230817 in words is "thirty-two billion, eight hundred forty million, two hundred thirty thousand, eight hundred seventeen".

Divisors: 1 72353 453889 32840230817