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51304218350 = 25271165320407
BaseRepresentation
bin101111110001111110…
…000011111011101110
311220102110221022212012
4233301332003323232
51320032334441400
635322511241222
73464236442420
oct576176037356
9156373838765
1051304218350
111a837991660
129b39819212
134ab8023a68
1426a9a2c810
151504119d35
hexbf1f83eee

51304218350 has 96 divisors (see below), whose sum is σ = 119160516096. Its totient is φ = 15965654400.

The previous prime is 51304218341. The next prime is 51304218367. The reversal of 51304218350 is 5381240315.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2503847 + ... + 2524253.

It is an arithmetic number, because the mean of its divisors is an integer number (1241255376).

Almost surely, 251304218350 is an apocalyptic number.

51304218350 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

51304218350 is an abundant number, since it is smaller than the sum of its proper divisors (67856297746).

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

51304218350 is a wasteful number, since it uses less digits than its factorization.

51304218350 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21090 (or 21085 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 32.

Adding to 51304218350 its reverse (5381240315), we get a palindrome (56685458665).

The spelling of 51304218350 in words is "fifty-one billion, three hundred four million, two hundred eighteen thousand, three hundred fifty".

Divisors: 1 2 5 7 10 11 14 22 25 35 50 55 70 77 110 154 175 275 350 385 550 653 770 1306 1925 3265 3850 4571 6530 7183 9142 14366 16325 20407 22855 32650 35915 40814 45710 50281 71830 100562 102035 114275 142849 179575 204070 224477 228550 251405 285698 359150 448954 502810 510175 714245 1020350 1122385 1257025 1428490 1571339 2244770 2514050 3142678 3571225 5611925 7142450 7856695 11223850 13325771 15713390 26651542 39283475 66628855 78566950 93280397 133257710 146583481 186560794 293166962 333144275 466401985 666288550 732917405 932803970 1026084367 1465834810 2052168734 2332009925 3664587025 4664019850 5130421835 7329174050 10260843670 25652109175 51304218350