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51928076971 = 1723438934703
BaseRepresentation
bin110000010111001001…
…111001001010101011
311222000221211122000001
4300113021321022223
51322322041430341
635504434523431
73515553241261
oct602711711253
9158027748001
1051928076971
11200280558a1
12a092736577
134b87354184
142728826431
15153dc9bd31
hexc172792ab

51928076971 has 32 divisors (see below), whose sum is σ = 59368826880. Its totient is φ = 45147024384.

The previous prime is 51928076969. The next prime is 51928076989. The reversal of 51928076971 is 17967082915.

It is a happy number.

51928076971 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 51928076971 - 21 = 51928076969 is a prime.

It is a super-2 number, since 2×519280769712 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51928076911) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1479006 + ... + 1513708.

It is an arithmetic number, because the mean of its divisors is an integer number (1855275840).

Almost surely, 251928076971 is an apocalyptic number.

51928076971 is a deficient number, since it is larger than the sum of its proper divisors (7440749909).

51928076971 is a wasteful number, since it uses less digits than its factorization.

51928076971 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34875.

The product of its (nonzero) digits is 1905120, while the sum is 55.

The spelling of 51928076971 in words is "fifty-one billion, nine hundred twenty-eight million, seventy-six thousand, nine hundred seventy-one".

Divisors: 1 17 23 43 89 391 731 989 1513 2047 3827 16813 34703 34799 65059 88021 589951 798169 1492229 1496357 3088567 13568873 25367893 34321267 52505639 71037041 132808381 583461539 1207629697 2257742477 3054592763 51928076971