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7282232897 = 171889226769
BaseRepresentation
bin1101100100000111…
…00000111001000001
3200210111210202112112
412302003200321001
5104403222423042
63202335305105
7345313646462
oct66203407101
920714722475
107282232897
1130a76a33a5
1214b297b195
138c0922a64
144d1226d69
152c94b8982
hex1b20e0e41

7282232897 has 8 divisors (see below), whose sum is σ = 7714715400. Its totient is φ = 6850207744.

The previous prime is 7282232873. The next prime is 7282232921. The reversal of 7282232897 is 7982322827.

It is a Cunningham number, because it is equal to 853362+1.

It is an interprime number because it is at equal distance from previous prime (7282232873) and next prime (7282232921).

It can be written as a sum of positive squares in 4 ways, for example, as 544942336 + 6737290561 = 23344^2 + 82081^2 .

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 7282232897 - 28 = 7282232641 is a prime.

It is a super-2 number, since 2×72822328972 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7282232827) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 81272 + ... + 145497.

It is an arithmetic number, because the mean of its divisors is an integer number (964339425).

Almost surely, 27282232897 is an apocalyptic number.

It is an amenable number.

7282232897 is a deficient number, since it is larger than the sum of its proper divisors (432482503).

7282232897 is a wasteful number, since it uses less digits than its factorization.

7282232897 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 228675.

The product of its digits is 1354752, while the sum is 50.

The square root of 7282232897 is about 85336.0000058592. Note that the first 5 decimals coincide. The cubic root of 7282232897 is about 1938.3023460236.

The spelling of 7282232897 in words is "seven billion, two hundred eighty-two million, two hundred thirty-two thousand, eight hundred ninety-seven".

Divisors: 1 17 1889 32113 226769 3855073 428366641 7282232897