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51900324848 = 2413935366109
BaseRepresentation
bin110000010101100000…
…000001101111110000
311221222000121200020122
4300111200001233300
51322242440343343
635502004025412
73515065324301
oct602540015760
9157860550218
1051900324848
1120013420259
12a085392268
134b816883b8
142724c807a8
15153b619068
hexc15801bf0

51900324848 has 40 divisors (see below), whose sum is σ = 101568759600. Its totient is φ = 25690097664.

The previous prime is 51900324829. The next prime is 51900324859. The reversal of 51900324848 is 84842300915.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 51900324799 and 51900324808.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 752018 + ... + 818126.

It is an arithmetic number, because the mean of its divisors is an integer number (2539218990).

Almost surely, 251900324848 is an apocalyptic number.

It is an amenable number.

51900324848 is a deficient number, since it is larger than the sum of its proper divisors (49668434752).

51900324848 is a wasteful number, since it uses less digits than its factorization.

51900324848 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66609 (or 66603 counting only the distinct ones).

The product of its (nonzero) digits is 276480, while the sum is 44.

The spelling of 51900324848 in words is "fifty-one billion, nine hundred million, three hundred twenty-four thousand, eight hundred forty-eight".

Divisors: 1 2 4 8 16 139 278 353 556 706 1112 1412 2224 2824 5648 49067 66109 98134 132218 196268 264436 392536 528872 785072 1057744 9189151 18378302 23336477 36756604 46672954 73513208 93345908 147026416 186691816 373383632 3243770303 6487540606 12975081212 25950162424 51900324848