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2112211244 = 22111310734511
BaseRepresentation
bin111110111100101…
…1100100100101100
312110012111110010002
41331321130210230
513311211224434
6545332003432
7103225333163
oct17571344454
95405443102
102112211244
11994319630
124ab460578
132787a5050
141607483da
15c567a57e
hex7de5c92c

2112211244 has 48 divisors (see below), whose sum is σ = 4383300096. Its totient is φ = 877934400.

The previous prime is 2112211243. The next prime is 2112211249. The reversal of 2112211244 is 4421122112.

It is a super-2 number, since 2×21122112442 = 8922872678560055072, which contains 22 as substring.

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (2112211243) 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, 43949 + ... + 78459.

It is an arithmetic number, because the mean of its divisors is an integer number (91318752).

Almost surely, 22112211244 is an apocalyptic number.

It is an amenable number.

2112211244 is an abundant number, since it is smaller than the sum of its proper divisors (2271088852).

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

2112211244 is a wasteful number, since it uses less digits than its factorization.

2112211244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34646 (or 34644 counting only the distinct ones).

The product of its digits is 256, while the sum is 20.

The square root of 2112211244 is about 45958.7994186097. The cubic root of 2112211244 is about 1283.0565066065.

Adding to 2112211244 its reverse (4421122112), we get a palindrome (6533333356).

The spelling of 2112211244 in words is "two billion, one hundred twelve million, two hundred eleven thousand, two hundred forty-four".

Divisors: 1 2 4 11 13 22 26 44 52 107 143 214 286 428 572 1177 1391 2354 2782 4708 5564 15301 30602 34511 61204 69022 138044 379621 448643 759242 897286 1518484 1794572 3692677 4935073 7385354 9870146 14770708 19740292 40619447 48004801 81238894 96009602 162477788 192019204 528052811 1056105622 2112211244