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12144142230 = 23511179205589
BaseRepresentation
bin10110100111101100…
…01110011110010110
31011100100100100022120
423103312032132112
5144332400022410
65325015040410
7606641335323
oct132366163626
934310310276
1012144142230
115172062890
12242b070106
1311b6c9239c
14832c1db4a
154b1244570
hex2d3d8e796

12144142230 has 64 divisors (see below), whose sum is σ = 31973356800. Its totient is φ = 2927573120.

The previous prime is 12144142223. The next prime is 12144142267. The reversal of 12144142230 is 3224144121.

It is a self number, because there is not a number n which added to its sum of digits gives 12144142230.

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, 43725 + ... + 161864.

It is an arithmetic number, because the mean of its divisors is an integer number (499583700).

Almost surely, 212144142230 is an apocalyptic number.

12144142230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12144142230 is an abundant number, since it is smaller than the sum of its proper divisors (19829214570).

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

12144142230 is a wasteful number, since it uses less digits than its factorization.

12144142230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 205789.

The product of its (nonzero) digits is 1536, while the sum is 24.

Adding to 12144142230 its reverse (3224144121), we get a palindrome (15368286351).

The spelling of 12144142230 in words is "twelve billion, one hundred forty-four million, one hundred forty-two thousand, two hundred thirty".

Divisors: 1 2 3 5 6 10 11 15 22 30 33 55 66 110 165 179 330 358 537 895 1074 1790 1969 2685 3938 5370 5907 9845 11814 19690 29535 59070 205589 411178 616767 1027945 1233534 2055890 2261479 3083835 4522958 6167670 6784437 11307395 13568874 22614790 33922185 36800431 67844370 73600862 110401293 184002155 220802586 368004310 404804741 552006465 809609482 1104012930 1214414223 2024023705 2428828446 4048047410 6072071115 12144142230