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51334115300 = 225213238916529
BaseRepresentation
bin101111110011110000…
…000110111111100100
311220111120012020202122
4233303300012333210
51320113013142200
635325500125112
73465051531506
oct576360067744
9156446166678
1051334115300
111a852851686
129b47836798
134ac1290b70
1426ad9b1d76
151506a73385
hexbf3c06fe4

51334115300 has 72 divisors (see below), whose sum is σ = 120021354600. Its totient is φ = 18945054720.

The previous prime is 51334115281. The next prime is 51334115323. The reversal of 51334115300 is 351143315.

It can be written as a sum of positive squares in 12 ways, for example, as 18190456384 + 33143658916 = 134872^2 + 182054^2 .

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a self number, because there is not a number n which added to its sum of digits gives 51334115300.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3097436 + ... + 3113964.

Almost surely, 251334115300 is an apocalyptic number.

51334115300 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 51334115300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (60010677300).

51334115300 is an abundant number, since it is smaller than the sum of its proper divisors (68687239300).

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

51334115300 is a wasteful number, since it uses less digits than its factorization.

51334115300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18945 (or 18938 counting only the distinct ones).

The product of its (nonzero) digits is 2700, while the sum is 26.

Adding to 51334115300 its reverse (351143315), we get a palindrome (51685258615).

The spelling of 51334115300 in words is "fifty-one billion, three hundred thirty-four million, one hundred fifteen thousand, three hundred".

Divisors: 1 2 4 5 10 13 20 25 26 50 52 65 100 130 260 325 650 1300 2389 4778 9556 11945 16529 23890 31057 33058 47780 59725 62114 66116 82645 119450 124228 155285 165290 214877 238900 310570 330580 413225 429754 621140 776425 826450 859508 1074385 1552850 1652900 2148770 3105700 4297540 5371925 10743850 21487700 39487781 78975562 157951124 197438905 394877810 513341153 789755620 987194525 1026682306 1974389050 2053364612 2566705765 3948778100 5133411530 10266823060 12833528825 25667057650 51334115300