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10771312220 = 225896051299
BaseRepresentation
bin10100000100000010…
…10010111001011100
31000210200010100120122
422002001102321130
5134024423442340
64540454334112
7530631433424
oct120201227134
930720110518
1010771312220
114628141329
12210735a338
131028737736
14742781484
15430969db5
hex282052e5c

10771312220 has 24 divisors (see below), whose sum is σ = 22873914000. Its totient is φ = 4260113792.

The previous prime is 10771312199. The next prime is 10771312261. The reversal of 10771312220 is 2221317701.

It is a self number, because there is not a number n which added to its sum of digits gives 10771312220.

It is a congruent number.

It is an unprimeable number.

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, 3023870 + ... + 3027429.

It is an arithmetic number, because the mean of its divisors is an integer number (953079750).

Almost surely, 210771312220 is an apocalyptic number.

10771312220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10771312220 is an abundant number, since it is smaller than the sum of its proper divisors (12102601780).

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

10771312220 is a wasteful number, since it uses less digits than its factorization.

10771312220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6051397 (or 6051395 counting only the distinct ones).

The product of its (nonzero) digits is 1176, while the sum is 26.

Adding to 10771312220 its reverse (2221317701), we get a palindrome (12992629921).

The spelling of 10771312220 in words is "ten billion, seven hundred seventy-one million, three hundred twelve thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 89 178 356 445 890 1780 6051299 12102598 24205196 30256495 60512990 121025980 538565611 1077131222 2154262444 2692828055 5385656110 10771312220