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7508668085 = 52775421421
BaseRepresentation
bin1101111111000110…
…10010111010110101
3201101021212212012222
412333203102322311
5110334204334320
63241024452125
7354033424412
oct67743227265
921337785188
107508668085
1132034a1516
12155677a045
13928804589
1451332b109
152de2e5825
hex1bf8d2eb5

7508668085 has 8 divisors (see below), whose sum is σ = 9042931896. Its totient is φ = 5985247680.

The previous prime is 7508668043. The next prime is 7508668093. The reversal of 7508668085 is 5808668057.

It can be written as a sum of positive squares in 4 ways, for example, as 347785201 + 7160882884 = 18649^2 + 84622^2 .

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

It is a de Polignac number, because none of the positive numbers 2k-7508668085 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2709326 + ... + 2712095.

It is an arithmetic number, because the mean of its divisors is an integer number (1130366487).

Almost surely, 27508668085 is an apocalyptic number.

It is an amenable number.

7508668085 is a deficient number, since it is larger than the sum of its proper divisors (1534263811).

7508668085 is a wasteful number, since it uses less digits than its factorization.

7508668085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5421703.

The product of its (nonzero) digits is 3225600, while the sum is 53.

The square root of 7508668085 is about 86652.5711390031. The cubic root of 7508668085 is about 1958.1876281554.

The spelling of 7508668085 in words is "seven billion, five hundred eight million, six hundred sixty-eight thousand, eighty-five".

Divisors: 1 5 277 1385 5421421 27107105 1501733617 7508668085