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51856962006 = 23233121795563
BaseRepresentation
bin110000010010111010…
…100111000111010110
311221212000000121121110
4300102322213013112
51322200340241011
635453414355450
73514030622103
oct602272470726
9157760017543
1051856962006
111aaa09a30a3
12a07295bb86
134b756b5005
14271d1d3aaa
151537900ba6
hexc12ea71d6

51856962006 has 64 divisors (see below), whose sum is σ = 111785656320. Its totient is φ = 15990527520.

The previous prime is 51856961977. The next prime is 51856962011. The reversal of 51856962006 is 60026965815.

51856962006 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 9318981 + ... + 9324543.

It is an arithmetic number, because the mean of its divisors is an integer number (1746650880).

Almost surely, 251856962006 is an apocalyptic number.

51856962006 is an abundant number, since it is smaller than the sum of its proper divisors (59928694314).

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

51856962006 is a wasteful number, since it uses less digits than its factorization.

51856962006 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7801.

The product of its (nonzero) digits is 777600, while the sum is 48.

The spelling of 51856962006 in words is "fifty-one billion, eight hundred fifty-six million, nine hundred sixty-two thousand, six".

Divisors: 1 2 3 6 23 31 46 62 69 93 138 186 713 1426 2139 2179 4278 4358 5563 6537 11126 13074 16689 33378 50117 67549 100234 127949 135098 150351 172453 202647 255898 300702 344906 383847 405294 517359 767694 1034718 1553627 3107254 3966419 4660881 7932838 9321762 11899257 12121777 23798514 24243554 36365331 72730662 278800871 375775087 557601742 751550174 836402613 1127325261 1672805226 2254650522 8642827001 17285654002 25928481003 51856962006