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51300230240012 = 221323179239626643
BaseRepresentation
bin10111010101000010001000…
…00000000001011100001100
320201122020212020202010021212
423222201010000001130030
523211000332420140022
6301035000031513552
713543214346205265
oct1352410400013414
9221566766663255
1051300230240012
111538933a637a86
1259063b33888b8
13228178b4319c0
14c94d315a796c
155de683db43e2
hex2ea84400170c

51300230240012 has 48 divisors (see below), whose sum is σ = 101448336003840. Its totient is φ = 22521070321728.

The previous prime is 51300230239987. The next prime is 51300230240027. The reversal of 51300230240012 is 21004203200315.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a self number, because there is not a number n which added to its sum of digits gives 51300230240012.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 119599238 + ... + 120027405.

It is an arithmetic number, because the mean of its divisors is an integer number (2113507000080).

Almost surely, 251300230240012 is an apocalyptic number.

51300230240012 is a gapful number since it is divisible by the number (52) formed by its first and last digit.

It is an amenable number.

51300230240012 is a deficient number, since it is larger than the sum of its proper divisors (50148105763828).

51300230240012 is a wasteful number, since it uses less digits than its factorization.

51300230240012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 239626862 (or 239626860 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 23.

Adding to 51300230240012 its reverse (21004203200315), we get a palindrome (72304433440327).

The spelling of 51300230240012 in words is "fifty-one trillion, three hundred billion, two hundred thirty million, two hundred forty thousand, twelve".

Divisors: 1 2 4 13 23 26 46 52 92 179 299 358 598 716 1196 2327 4117 4654 8234 9308 16468 53521 107042 214084 239626643 479253286 958506572 3115146359 5511412789 6230292718 11022825578 12460585436 22045651156 42893169097 71648366257 85786338194 143296732514 171572676388 286593465028 557611198261 986542889231 1115222396522 1973085778462 2230444793044 3946171556924 12825057560003 25650115120006 51300230240012