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211011110112 = 253112371014861
BaseRepresentation
bin1100010010000100111…
…1100000010011100000
3202011122201122000221110
43010201033200103200
511424122321010422
6240534232223320
721150023561565
oct3044117402340
9664581560843
10211011110112
11815422a8200
1234a8b23ab40
1316b8a63674a
14a2da64486c
15574eeaa60c
hex31213e04e0

211011110112 has 288 divisors, whose sum is σ = 631612773792. Its totient is φ = 61585920000.

The previous prime is 211011110111. The next prime is 211011110137.

211011110112 is nontrivially palindromic in base 10.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211011110111) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 43406562 + ... + 43411422.

It is an arithmetic number, because the mean of its divisors is an integer number (2193099909).

Almost surely, 2211011110112 is an apocalyptic number.

211011110112 is a gapful number since it is divisible by the number (22) 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 211011110112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (315806386896).

211011110112 is an abundant number, since it is smaller than the sum of its proper divisors (420601663680).

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

211011110112 is a wasteful number, since it uses less digits than its factorization.

211011110112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5034 (or 5015 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 12.

It can be divided in two parts, 211011 and 110112, that multiplied together give a palindrome (23234843232).

The spelling of 211011110112 in words is "two hundred eleven billion, eleven million, one hundred ten thousand, one hundred twelve".