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143440444230 = 235175921312237
BaseRepresentation
bin1000010110010110110…
…1110111101101000110
3111201020121111112222120
42011211231313231012
54322231223203410
6145521242310410
713235405441646
oct2054555675506
9451217445876
10143440444230
1155918433886
1223971ab8406
13106ac5a8905
146d2a526526
153ae7cb7570
hex2165b77b46

143440444230 has 128 divisors (see below), whose sum is σ = 371025308160. Its totient is φ = 35358136320.

The previous prime is 143440444223. The next prime is 143440444283. The reversal of 143440444230 is 32444044341.

It is a super-2 number, since 2×1434404442302 (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 143440444191 and 143440444200.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 64120672 + ... + 64122908.

It is an arithmetic number, because the mean of its divisors is an integer number (2898635220).

Almost surely, 2143440444230 is an apocalyptic number.

143440444230 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 143440444230, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (185512654080).

143440444230 is an abundant number, since it is smaller than the sum of its proper divisors (227584863930).

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

143440444230 is a wasteful number, since it uses less digits than its factorization.

143440444230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4454.

The product of its (nonzero) digits is 73728, while the sum is 33.

Adding to 143440444230 its reverse (32444044341), we get a palindrome (175884488571).

The spelling of 143440444230 in words is "one hundred forty-three billion, four hundred forty million, four hundred forty-four thousand, two hundred thirty".

Divisors: 1 2 3 5 6 10 15 17 30 34 51 59 85 102 118 170 177 255 295 354 510 590 885 1003 1770 2006 2131 2237 3009 4262 4474 5015 6018 6393 6711 10030 10655 11185 12786 13422 15045 21310 22370 30090 31965 33555 36227 38029 63930 67110 72454 76058 108681 114087 125729 131983 181135 190145 217362 228174 251458 263966 362270 377187 380290 395949 543405 570435 628645 659915 754374 791898 1086810 1140870 1257290 1319830 1885935 1979745 2137393 2243711 3771870 3959490 4274786 4487422 4767047 6412179 6731133 9534094 10686965 11218555 12824358 13462266 14301141 21373930 22437110 23835235 28602282 32060895 33655665 47670470 64121790 67311330 71505705 81039799 143011410 162079598 243119397 281255773 405198995 486238794 562511546 810397990 843767319 1215596985 1406278865 1687534638 2431193970 2812557730 4218836595 4781348141 8437673190 9562696282 14344044423 23906740705 28688088846 47813481410 71720222115 143440444230