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51442521130 = 25721113734159
BaseRepresentation
bin101111111010001101…
…101001010000101010
311220210010011211121101
4233322031221100222
51320323241134010
635344331432014
73500536133500
oct577215512052
9156703154541
1051442521130
111a8a8a64580
129b77bb560a
134b0a888720
1426c0150670
15151133873a
hexbfa36942a

51442521130 has 96 divisors (see below), whose sum is σ = 126545690880. Its totient is φ = 14800625280.

The previous prime is 51442521127. The next prime is 51442521167. The reversal of 51442521130 is 3112524415.

It is an unprimeable number.

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 47 ways as a sum of consecutive naturals, for example, 297010 + ... + 437149.

It is an arithmetic number, because the mean of its divisors is an integer number (1318184280).

Almost surely, 251442521130 is an apocalyptic number.

51442521130 is an abundant number, since it is smaller than the sum of its proper divisors (75103169750).

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

51442521130 is a wasteful number, since it uses less digits than its factorization.

51442521130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 734204 (or 734197 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 28.

The spelling of 51442521130 in words is "fifty-one billion, four hundred forty-two million, five hundred twenty-one thousand, one hundred thirty".

Divisors: 1 2 5 7 10 11 13 14 22 26 35 49 55 65 70 77 91 98 110 130 143 154 182 245 286 385 455 490 539 637 715 770 910 1001 1078 1274 1430 2002 2695 3185 5005 5390 6370 7007 10010 14014 35035 70070 734159 1468318 3670795 5139113 7341590 8075749 9544067 10278226 16151498 19088134 25695565 35973791 40378745 47720335 51391130 56530243 66808469 71947582 80757490 95440670 104984737 113060486 133616938 179868955 209969474 282651215 334042345 359737910 395711701 467659283 524923685 565302430 668084690 734893159 791423402 935318566 1049847370 1469786318 1978558505 2338296415 3674465795 3957117010 4676592830 5144252113 7348931590 10288504226 25721260565 51442521130