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51086518480245 = 3526956989222163
BaseRepresentation
bin10111001110110100000011…
…10010010110110101110101
320200212211020022100212111010
423213122001302112311311
523144000142212331440
6300352453403102433
713521610360213263
oct1347320162266565
9220784208325433
1051086518480245
111530674194a816
125890aab811a19
132267590444c11
14c8885a401433
155d8d26c96580
hex2e7681c96d75

51086518480245 has 32 divisors (see below), whose sum is σ = 82044098812800. Its totient is φ = 27144257912064.

The previous prime is 51086518480211. The next prime is 51086518480253. The reversal of 51086518480245 is 54208481568015.

It is not a de Polignac number, because 51086518480245 - 26 = 51086518480181 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 229839534 + ... + 230061696.

It is an arithmetic number, because the mean of its divisors is an integer number (2563878087900).

Almost surely, 251086518480245 is an apocalyptic number.

It is an amenable number.

51086518480245 is a deficient number, since it is larger than the sum of its proper divisors (30957580332555).

51086518480245 is a wasteful number, since it uses less digits than its factorization.

51086518480245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 279429.

The product of its (nonzero) digits is 12288000, while the sum is 57.

The spelling of 51086518480245 in words is "fifty-one trillion, eighty-six billion, five hundred eighteen million, four hundred eighty thousand, two hundred forty-five".

Divisors: 1 3 5 15 269 807 1345 4035 56989 170967 222163 284945 666489 854835 1110815 3332445 15330041 45990123 59761847 76650205 179285541 229950615 298809235 896427705 12660847207 37982541621 63304236035 189912708105 3405767898683 10217303696049 17028839493415 51086518480245