Search a number
-
+
51302151430000 = 24548361809821
BaseRepresentation
bin10111010101000101101101…
…00000110001111101110000
320201122102211010210200111121
423222202312200301331300
523211013301231230000
6301035514421352024
713543313065101262
oct1352426640617560
9221572733720447
1051302151430000
111538a1360464a9
12590684a868614
132281a06474503
14c950747c9b32
155de7478aab1a
hex2ea8b6831f70

51302151430000 has 100 divisors (see below), whose sum is σ = 125704118437128. Its totient is φ = 20273620960000.

The previous prime is 51302151429941. The next prime is 51302151430031. The reversal of 51302151430000 is 3415120315.

It is a happy number.

51302151430000 is digitally balanced in base 2 and base 6, because in such bases it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (100).

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

It is an unprimeable number.

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 19 ways as a sum of consecutive naturals, for example, 30074911 + ... + 31734910.

Almost surely, 251302151430000 is an apocalyptic number.

51302151430000 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

51302151430000 is an abundant number, since it is smaller than the sum of its proper divisors (74401967007128).

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

51302151430000 is an equidigital number, since it uses as much as digits as its factorization.

51302151430000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61809932 (or 61809911 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 25.

Adding to 51302151430000 its reverse (3415120315), we get a palindrome (51305566550315).

The spelling of 51302151430000 in words is "fifty-one trillion, three hundred two billion, one hundred fifty-one million, four hundred thirty thousand".

Divisors: 1 2 4 5 8 10 16 20 25 40 50 80 83 100 125 166 200 250 332 400 415 500 625 664 830 1000 1250 1328 1660 2000 2075 2500 3320 4150 5000 6640 8300 10000 10375 16600 20750 33200 41500 51875 83000 103750 166000 207500 415000 830000 61809821 123619642 247239284 309049105 494478568 618098210 988957136 1236196420 1545245525 2472392840 3090491050 4944785680 5130215143 6180982100 7726227625 10260430286 12361964200 15452455250 20520860572 24723928400 25651075715 30904910500 38631138125 41041721144 51302151430 61809821000 77262276250 82083442288 102604302860 123619642000 128255378575 154524552500 205208605720 256510757150 309049105000 410417211440 513021514300 618098210000 641276892875 1026043028600 1282553785750 2052086057200 2565107571500 3206384464375 5130215143000 6412768928750 10260430286000 12825537857500 25651075715000 51302151430000