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61052071430 = 2576171277727
BaseRepresentation
bin111000110110111111…
…001010111000000110
312211120211020120102202
4320312333022320012
52000013312241210
644014045434502
74260633021230
oct706677127006
9184524216382
1061052071430
112398a336989
12b9ba26ba32
1359ac6c956c
142d524b7250
1518c4cbc9a5
hexe36fcae06

61052071430 has 128 divisors (see below), whose sum is σ = 130095673344. Its totient is φ = 20197900800.

The previous prime is 61052071427. The next prime is 61052071441. The reversal of 61052071430 is 3417025016.

It is a junction number, because it is equal to n+sod(n) for n = 61052071393 and 61052071402.

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, 83977727 + ... + 83978453.

It is an arithmetic number, because the mean of its divisors is an integer number (1016372448).

Almost surely, 261052071430 is an apocalyptic number.

61052071430 is an abundant number, since it is smaller than the sum of its proper divisors (69043601914).

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

61052071430 is a wasteful number, since it uses less digits than its factorization.

61052071430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1150.

The product of its (nonzero) digits is 5040, while the sum is 29.

Adding to 61052071430 its reverse (3417025016), we get a palindrome (64469096446).

The spelling of 61052071430 in words is "sixty-one billion, fifty-two million, seventy-one thousand, four hundred thirty".

Divisors: 1 2 5 7 10 14 35 61 70 71 122 142 277 305 355 427 497 554 610 710 727 854 994 1385 1454 1939 2135 2485 2770 3635 3878 4270 4331 4970 5089 7270 8662 9695 10178 16897 19390 19667 21655 25445 30317 33794 39334 43310 44347 50890 51617 60634 84485 88694 98335 103234 118279 137669 151585 168970 196670 201379 221735 236558 258085 275338 303170 310429 361319 402758 443470 516170 591395 620858 688345 722638 1006895 1182790 1199687 1376690 1409653 1552145 1806595 2013790 2399374 2819306 3104290 3148637 3613190 5998435 6297274 7048265 8397809 11996870 12284119 14096530 14297909 15743185 16795618 22040459 24568238 28595818 31486370 41989045 44080918 61420595 71489545 83978090 85988833 100085363 110202295 122841190 142979090 171977666 200170726 220404590 429944165 500426815 859888330 872172449 1000853630 1744344898 4360862245 6105207143 8721724490 12210414286 30526035715 61052071430