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112012220 = 225192811049
BaseRepresentation
bin1101010110100…
…10101110111100
321210202210212202
412223102232330
5212133342340
615040451032
72530042145
oct653225674
9253683782
10112012220
1158256491
1231619a78
131a28b228
1410c3aacc
159c78c15
hex6ad2bbc

112012220 has 48 divisors (see below), whose sum is σ = 248724000. Its totient is φ = 42255360.

The previous prime is 112012217. The next prime is 112012223. The reversal of 112012220 is 22210211.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (112012217) and next prime (112012223).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (112012223) 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, 106256 + ... + 107304.

It is an arithmetic number, because the mean of its divisors is an integer number (5181750).

Almost surely, 2112012220 is an apocalyptic number.

112012220 is a gapful number since it is divisible by the number (10) 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 112012220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (124362000).

112012220 is an abundant number, since it is smaller than the sum of its proper divisors (136711780).

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

112012220 is a wasteful number, since it uses less digits than its factorization.

112012220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1358 (or 1356 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

The square root of 112012220 is about 10583.5825692437. The cubic root of 112012220 is about 482.0459831133.

Adding to 112012220 its reverse (22210211), we get a palindrome (134222431).

The spelling of 112012220 in words is "one hundred twelve million, twelve thousand, two hundred twenty".

Divisors: 1 2 4 5 10 19 20 38 76 95 190 281 380 562 1049 1124 1405 2098 2810 4196 5245 5339 5620 10490 10678 19931 20980 21356 26695 39862 53390 79724 99655 106780 199310 294769 398620 589538 1179076 1473845 2947690 5600611 5895380 11201222 22402444 28003055 56006110 112012220