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12144320211430 = 25111931118683857
BaseRepresentation
bin1011000010111001000111…
…1001000110100111100110
31120222222121120000110111101
42300232101321012213212
53042433031433231210
641455005041030314
72362253401404301
oct260562171064746
946888546013441
1012144320211430
113962417180810
12144179832539a
136a12873297b4
142ddb06cb5b38
15160d7d069a3a
hexb0b91e469e6

12144320211430 has 64 divisors (see below), whose sum is σ = 25182851166720. Its totient is φ = 4170236659200.

The previous prime is 12144320211421. The next prime is 12144320211503. The reversal of 12144320211430 is 3411202344121.

It is a happy number.

12144320211430 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 8691939 + ... + 9991918.

It is an arithmetic number, because the mean of its divisors is an integer number (393482049480).

Almost surely, 212144320211430 is an apocalyptic number.

12144320211430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12144320211430 is an abundant number, since it is smaller than the sum of its proper divisors (13038530955290).

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

12144320211430 is a wasteful number, since it uses less digits than its factorization.

12144320211430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18684205.

The product of its (nonzero) digits is 4608, while the sum is 28.

Adding to 12144320211430 its reverse (3411202344121), we get a palindrome (15555522555551).

The spelling of 12144320211430 in words is "twelve trillion, one hundred forty-four billion, three hundred twenty million, two hundred eleven thousand, four hundred thirty".

Divisors: 1 2 5 10 11 19 22 38 55 95 110 190 209 311 418 622 1045 1555 2090 3110 3421 5909 6842 11818 17105 29545 34210 59090 64999 129998 324995 649990 18683857 37367714 93419285 186838570 205522427 354993283 411044854 709986566 1027612135 1774966415 2055224270 3549932830 3904926113 5810679527 7809852226 11621359054 19524630565 29053397635 39049261130 58106795270 63917474797 110402911013 127834949594 220805822026 319587373985 552014555065 639174747970 1104029110130 1214432021143 2428864042286 6072160105715 12144320211430