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51928076970 = 2365711791171
BaseRepresentation
bin110000010111001001…
…111001001010101010
311222000221211122000000
4300113021321022222
51322322041430340
635504434523430
73515553241260
oct602711711252
9158027748000
1051928076970
11200280558a0
12a092736576
134b87354183
142728826430
15153dc9bd30
hexc172792aa

51928076970 has 448 divisors, whose sum is σ = 177084887040. Its totient is φ = 10644566400.

The previous prime is 51928076969. The next prime is 51928076989. The reversal of 51928076970 is 7967082915.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 223 ways as a sum of consecutive naturals, for example, 44344485 + ... + 44345655.

Almost surely, 251928076970 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 51928076970, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (88542443520).

51928076970 is an abundant number, since it is smaller than the sum of its proper divisors (125156810070).

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

51928076970 is a wasteful number, since it uses less digits than its factorization.

51928076970 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1293 (or 1278 counting only the distinct ones).

The product of its (nonzero) digits is 1905120, while the sum is 54.

The spelling of 51928076970 in words is "fifty-one billion, nine hundred twenty-eight million, seventy-six thousand, nine hundred seventy".