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51648910050 = 23522511371817
BaseRepresentation
bin110000000110100000…
…111101001011100010
311221022111112110222110
4300012200331023202
51321234110110200
635421023220150
73505623330453
oct600640751342
9157274473873
1051648910050
111a9a4510631
12a015147656
134b4156ba4a
1426dd71712a
151524505b50
hexc0683d2e2

51648910050 has 48 divisors (see below), whose sum is σ = 128599706592. Its totient is φ = 13718160000.

The previous prime is 51648910021. The next prime is 51648910051. The reversal of 51648910050 is 5001984615.

It is a super-3 number, since 3×516489100503 (a number of 33 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 51648909990 and 51648910008.

It is not an unprimeable number, because it can be changed into a prime (51648910051) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 648259 + ... + 723558.

It is an arithmetic number, because the mean of its divisors is an integer number (2679160554).

Almost surely, 251648910050 is an apocalyptic number.

51648910050 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

51648910050 is an abundant number, since it is smaller than the sum of its proper divisors (76950796542).

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

51648910050 is a wasteful number, since it uses less digits than its factorization.

51648910050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1372083 (or 1372078 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 39.

The spelling of 51648910050 in words is "fifty-one billion, six hundred forty-eight million, nine hundred ten thousand, fifty".

Divisors: 1 2 3 5 6 10 15 25 30 50 75 150 251 502 753 1255 1506 2510 3765 6275 7530 12550 18825 37650 1371817 2743634 4115451 6859085 8230902 13718170 20577255 34295425 41154510 68590850 102886275 205772550 344326067 688652134 1032978201 1721630335 2065956402 3443260670 5164891005 8608151675 10329782010 17216303350 25824455025 51648910050