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11005351660 = 2256725731957
BaseRepresentation
bin10100011111111100…
…00101011011101100
31001101222111210100001
422033332011123230
5140014332223120
65020014514044
7536502642232
oct121776053354
931358453301
1011005351660
114738263656
122171805924
13106507c504
147658a4952
15446299e0a
hex28ff856ec

11005351660 has 48 divisors (see below), whose sum is σ = 23548188384. Its totient is φ = 4319428608.

The previous prime is 11005351649. The next prime is 11005351667. The reversal of 11005351660 is 6615350011.

It is a super-2 number, since 2×110053516602 (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (11005351667) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 328402 + ... + 360358.

It is an arithmetic number, because the mean of its divisors is an integer number (490587258).

Almost surely, 211005351660 is an apocalyptic number.

11005351660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11005351660 is an abundant number, since it is smaller than the sum of its proper divisors (12542836724).

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

11005351660 is a wasteful number, since it uses less digits than its factorization.

11005351660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32290 (or 32288 counting only the distinct ones).

The product of its (nonzero) digits is 2700, while the sum is 28.

The spelling of 11005351660 in words is "eleven billion, five million, three hundred fifty-one thousand, six hundred sixty".

Divisors: 1 2 4 5 10 20 67 134 257 268 335 514 670 1028 1285 1340 2570 5140 17219 31957 34438 63914 68876 86095 127828 159785 172190 319570 344380 639140 2141119 4282238 8212949 8564476 10705595 16425898 21411190 32851796 41064745 42822380 82129490 164258980 550267583 1100535166 2201070332 2751337915 5502675830 11005351660