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51357485471300 = 2252679941771079
BaseRepresentation
bin10111010110101100110001…
…01011011001011001000100
320201211201122110120020012122
423223112120223121121010
523212420112240040200
6301121145250105112
713550312236510661
oct1353263053313104
9221751573506178
1051357485471300
1115400650730748
125915511b7b198
132286cb432c198
14c97a036d2a68
155e0dd568c385
hex2eb598ad9644

51357485471300 has 72 divisors (see below), whose sum is σ = 113120637524160. Its totient is φ = 20234320444800.

The previous prime is 51357485471267. The next prime is 51357485471309. The reversal of 51357485471300 is 317458475315.

51357485471300 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (51357485471309) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 66219161 + ... + 66990239.

Almost surely, 251357485471300 is an apocalyptic number.

51357485471300 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 51357485471300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (56560318762080).

51357485471300 is an abundant number, since it is smaller than the sum of its proper divisors (61763152052860).

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

51357485471300 is a wasteful number, since it uses less digits than its factorization.

51357485471300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 781101 (or 781094 counting only the distinct ones).

The product of its (nonzero) digits is 7056000, while the sum is 53.

The spelling of 51357485471300 in words is "fifty-one trillion, three hundred fifty-seven billion, four hundred eighty-five million, four hundred seventy-one thousand, three hundred".

Divisors: 1 2 4 5 10 20 25 50 67 100 134 268 335 670 1340 1675 3350 6700 9941 19882 39764 49705 99410 198820 248525 497050 666047 771079 994100 1332094 1542158 2664188 3084316 3330235 3855395 6660470 7710790 13320940 15421580 16651175 19276975 33302350 38553950 51662293 66604700 77107900 103324586 206649172 258311465 516622930 1033245860 1291557325 2583114650 5166229300 7665296339 15330592678 30661185356 38326481695 76652963390 153305926780 191632408475 383264816950 513574854713 766529633900 1027149709426 2054299418852 2567874273565 5135748547130 10271497094260 12839371367825 25678742735650 51357485471300