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88020388633 = 613143589541
BaseRepresentation
bin101000111111001101…
…1001000101100011001
322102012021220000211211
41101332123020230121
52420231204414013
6104234102223121
76234140646562
oct1217633105431
9272167800754
1088020388633
113436923a841
1215085a24aa1
1383b99661c8
14439002d169
15245269523d
hex147e6c8b19

88020388633 has 4 divisors (see below), whose sum is σ = 88163978788. Its totient is φ = 87876798480.

The previous prime is 88020388549. The next prime is 88020388663. The reversal of 88020388633 is 33688302088.

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 33748629264 + 54271759369 = 183708^2 + 232963^2 .

It is a cyclic number.

It is not a de Polignac number, because 88020388633 - 29 = 88020388121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (88020388663) 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, 71794158 + ... + 71795383.

It is an arithmetic number, because the mean of its divisors is an integer number (22040994697).

Almost surely, 288020388633 is an apocalyptic number.

It is an amenable number.

88020388633 is a deficient number, since it is larger than the sum of its proper divisors (143590155).

88020388633 is a wasteful number, since it uses less digits than its factorization.

88020388633 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143590154.

The product of its (nonzero) digits is 1327104, while the sum is 49.

The spelling of 88020388633 in words is "eighty-eight billion, twenty million, three hundred eighty-eight thousand, six hundred thirty-three".

Divisors: 1 613 143589541 88020388633