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51034130320 = 2454347833803
BaseRepresentation
bin101111100001110111…
…110000011110010000
311212201122201102201211
4233201313300132100
51314004214132240
635240022305504
73454446643645
oct574167603620
9155648642654
1051034130320
111a709488508
129a83288294
134a74099b64
142681c03dcc
1514da568bea
hexbe1df0790

51034130320 has 160 divisors (see below), whose sum is σ = 125523965952. Its totient is φ = 19274497536.

The previous prime is 51034130297. The next prime is 51034130327. The reversal of 51034130320 is 2303143015.

It is a junction number, because it is equal to n+sod(n) for n = 51034130291 and 51034130300.

It is not an unprimeable number, because it can be changed into a prime (51034130327) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 13417539 + ... + 13421341.

Almost surely, 251034130320 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 51034130320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (62761982976).

51034130320 is an abundant number, since it is smaller than the sum of its proper divisors (74489835632).

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

51034130320 is a wasteful number, since it uses less digits than its factorization.

51034130320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3989 (or 3983 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 22.

Adding to 51034130320 its reverse (2303143015), we get a palindrome (53337273335).

The spelling of 51034130320 in words is "fifty-one billion, thirty-four million, one hundred thirty thousand, three hundred twenty".

Divisors: 1 2 4 5 8 10 16 20 40 43 47 80 83 86 94 166 172 188 215 235 332 344 376 415 430 470 664 688 752 830 860 940 1328 1660 1720 1880 2021 3320 3440 3569 3760 3803 3901 4042 6640 7138 7606 7802 8084 10105 14276 15212 15604 16168 17845 19015 19505 20210 28552 30424 31208 32336 35690 38030 39010 40420 57104 60848 62416 71380 76060 78020 80840 142760 152120 156040 161680 163529 167743 178741 285520 304240 312080 315649 327058 335486 357482 631298 654116 670972 714964 817645 838715 893705 1262596 1308232 1341944 1429928 1578245 1635290 1677430 1787410 2525192 2616464 2683888 2859856 3156490 3270580 3354860 3574820 5050384 6312980 6541160 6709720 7149640 7685863 12625960 13082320 13419440 13572907 14299280 14835503 15371726 25251920 27145814 29671006 30743452 38429315 54291628 59342012 61486904 67864535 74177515 76858630 108583256 118684024 122973808 135729070 148355030 153717260 217166512 237368048 271458140 296710060 307434520 542916280 593420120 614869040 637926629 1085832560 1186840240 1275853258 2551706516 3189633145 5103413032 6379266290 10206826064 12758532580 25517065160 51034130320