Search a number
-
+
51230242126160 = 2451737669295681
BaseRepresentation
bin10111010010111111110000…
…11000100011100101010000
320201101120012122202120010222
423221133320120203211100
523203324013441014120
6300542503123412212
713535156105102156
oct1351377030434520
9221346178676128
1051230242126160
1115361695124179
1258b4920524068
132277cb65b9596
14c917b23a73d6
155dc939850525
hex2e97f8623950

51230242126160 has 40 divisors (see below), whose sum is σ = 126116801943336. Its totient is φ = 19286679388160.

The previous prime is 51230242126097. The next prime is 51230242126163. The reversal of 51230242126160 is 6162124203215.

51230242126160 is digitally balanced in base 2 and base 5, because in such bases it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 17122679857936 + 34107562268224 = 4137956^2 + 5840168^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is a self number, because there is not a number n which added to its sum of digits gives 51230242126160.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51230242126163) 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 7 ways as a sum of consecutive naturals, for example, 18834646481 + ... + 18834649200.

Almost surely, 251230242126160 is an apocalyptic number.

It is an amenable number.

51230242126160 is an abundant number, since it is smaller than the sum of its proper divisors (74886559817176).

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

51230242126160 is a wasteful number, since it uses less digits than its factorization.

51230242126160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37669295711 (or 37669295705 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 35.

Adding to 51230242126160 its reverse (6162124203215), we get a palindrome (57392366329375).

The spelling of 51230242126160 in words is "fifty-one trillion, two hundred thirty billion, two hundred forty-two million, one hundred twenty-six thousand, one hundred sixty".

Divisors: 1 2 4 5 8 10 16 17 20 34 40 68 80 85 136 170 272 340 680 1360 37669295681 75338591362 150677182724 188346478405 301354365448 376692956810 602708730896 640378026577 753385913620 1280756053154 1506771827240 2561512106308 3013543654480 3201890132885 5123024212616 6403780265770 10246048425232 12807560531540 25615121063080 51230242126160