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10666301625 = 325372193493
BaseRepresentation
bin10011110111100001…
…01101100010111001
31000112100112021010100
421323300231202321
5133321033123000
64522223510013
7525215032200
oct117360554271
930470467110
1010666301625
114583938311
122098158309
13100ca5b3a5
14732848237
15426625a00
hex27bc2d8b9

10666301625 has 72 divisors (see below), whose sum is σ = 22367132424. Its totient is φ = 4875998400.

The previous prime is 10666301621. The next prime is 10666301663. The reversal of 10666301625 is 52610366601.

10666301625 is nontrivially palindromic in base 14.

It can be written as a sum of positive squares in 4 ways, for example, as 198556281 + 10467745344 = 14091^2 + 102312^2 .

It is not a de Polignac number, because 10666301625 - 22 = 10666301621 is a prime.

It is a super-2 number, since 2×106663016252 (a number of 21 digits) contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 10666301625.

It is not an unprimeable number, because it can be changed into a prime (10666301621) 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 71 ways as a sum of consecutive naturals, for example, 41622 + ... + 151871.

It is an arithmetic number, because the mean of its divisors is an integer number (310654617).

Almost surely, 210666301625 is an apocalyptic number.

10666301625 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

10666301625 is an abundant number, since it is smaller than the sum of its proper divisors (11700830799).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

10666301625 is a wasteful number, since it uses less digits than its factorization.

10666301625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 193528 (or 193508 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 36.

The spelling of 10666301625 in words is "ten billion, six hundred sixty-six million, three hundred one thousand, six hundred twenty-five".

Divisors: 1 3 5 7 9 15 21 25 35 45 49 63 75 105 125 147 175 225 245 315 375 441 525 735 875 1125 1225 1575 2205 2625 3675 6125 7875 11025 18375 55125 193493 580479 967465 1354451 1741437 2902395 4063353 4837325 6772255 8707185 9481157 12190059 14511975 20316765 24186625 28443471 33861275 43535925 47405785 60950295 72559875 85330413 101583825 142217355 169306375 217679625 237028925 304751475 426652065 507919125 711086775 1185144625 1523757375 2133260325 3555433875 10666301625