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12100230 = 2325314337
BaseRepresentation
bin101110001010…
…001010000110
3211202202101200
4232022022012
511044201410
61111203330
7204564432
oct56121206
924682350
1012100230
11691509a
124076546
1326787cc
14186d9c2
1510e03c0
hexb8a286

12100230 has 48 divisors (see below), whose sum is σ = 32482944. Its totient is φ = 3121920.

The previous prime is 12100229. The next prime is 12100247. The reversal of 12100230 is 3200121.

It is a happy number.

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

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 622 + ... + 4958.

It is an arithmetic number, because the mean of its divisors is an integer number (676728).

Almost surely, 212100230 is an apocalyptic number.

12100230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 12100230, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16241472).

12100230 is an abundant number, since it is smaller than the sum of its proper divisors (20382714).

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

12100230 is a wasteful number, since it uses less digits than its factorization.

12100230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4381 (or 4378 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 9.

The square root of 12100230 is about 3478.5384862037. The cubic root of 12100230 is about 229.5784970777.

Adding to 12100230 its reverse (3200121), we get a palindrome (15300351).

The spelling of 12100230 in words is "twelve million, one hundred thousand, two hundred thirty".

Divisors: 1 2 3 5 6 9 10 15 18 30 31 45 62 90 93 155 186 279 310 465 558 930 1395 2790 4337 8674 13011 21685 26022 39033 43370 65055 78066 130110 134447 195165 268894 390330 403341 672235 806682 1210023 1344470 2016705 2420046 4033410 6050115 12100230