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11212030230 = 23517175312541
BaseRepresentation
bin10100111000100101…
…00000000100010110
31001221101102011000220
422130102200010112
5140430234431410
65052320415210
7544562453532
oct123422400426
931841364026
1011212030230
114833998295
12220aa77506
131098b3461b
14785104bc2
154594c3070
hex29c4a0116

11212030230 has 64 divisors (see below), whose sum is σ = 28510273728. Its totient is φ = 2812170240.

The previous prime is 11212030177. The next prime is 11212030259. The reversal of 11212030230 is 3203021211.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 887760 + ... + 900300.

It is an arithmetic number, because the mean of its divisors is an integer number (445473027).

Almost surely, 211212030230 is an apocalyptic number.

11212030230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11212030230 is an abundant number, since it is smaller than the sum of its proper divisors (17298243498).

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

11212030230 is a wasteful number, since it uses less digits than its factorization.

11212030230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14321.

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 11212030230 its reverse (3203021211), we get a palindrome (14415051441).

The spelling of 11212030230 in words is "eleven billion, two hundred twelve million, thirty thousand, two hundred thirty".

Divisors: 1 2 3 5 6 10 15 17 30 34 51 85 102 170 255 510 1753 3506 5259 8765 10518 12541 17530 25082 26295 29801 37623 52590 59602 62705 75246 89403 125410 149005 178806 188115 213197 298010 376230 426394 447015 639591 894030 1065985 1279182 2131970 3197955 6395910 21984373 43968746 65953119 109921865 131906238 219843730 329765595 373734341 659531190 747468682 1121203023 1868671705 2242406046 3737343410 5606015115 11212030230