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1111010112 = 263217831367
BaseRepresentation
bin100001000111000…
…1010101101000000
32212102120011100200
41002032022231000
54233404310422
6302124445200
736350300352
oct10216125500
92772504320
101111010112
11520155383
122700a9800
13149237244
14a77a70d2
156780d2ac
hex4238ab40

1111010112 has 168 divisors, whose sum is σ = 3414954816. Its totient is φ = 344100864.

The previous prime is 1111010107. The next prime is 1111010113. The reversal of 1111010112 is 2110101111.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 1111010094 and 1111010103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1111010113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 812053 + ... + 813419.

It is an arithmetic number, because the mean of its divisors is an integer number (20327112).

Almost surely, 21111010112 is an apocalyptic number.

1111010112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1111010112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1707477408).

1111010112 is an abundant number, since it is smaller than the sum of its proper divisors (2303944704).

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

1111010112 is a wasteful number, since it uses less digits than its factorization.

1111010112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1485 (or 1472 counting only the distinct ones).

The product of its (nonzero) digits is 2, while the sum is 9.

The square root of 1111010112 is about 33331.8183122373. The cubic root of 1111010112 is about 1035.7127849282.

Adding to 1111010112 its reverse (2110101111), we get a palindrome (3221111223).

Subtracting 1111010112 from its reverse (2110101111), we obtain a palindrome (999090999).

The spelling of 1111010112 in words is "one billion, one hundred eleven million, ten thousand, one hundred twelve".