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51893956473 = 3191512160209
BaseRepresentation
bin110000010101000111…
…101110111101111001
311221221120122010110220
4300111013232331321
51322234323101343
635501215330253
73514660231512
oct602507567571
9157846563426
1051893956473
112000a870637
12a083220989
134b80268828
1427240a3a09
15153acac183
hexc151eef79

51893956473 has 16 divisors (see below), whose sum is σ = 72839649600. Its totient is φ = 32772418560.

The previous prime is 51893956469. The next prime is 51893956487. The reversal of 51893956473 is 37465939815.

It is not a de Polignac number, because 51893956473 - 22 = 51893956469 is a prime.

It is not an unprimeable number, because it can be changed into a prime (51893956403) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 831793 + ... + 892001.

It is an arithmetic number, because the mean of its divisors is an integer number (4552478100).

Almost surely, 251893956473 is an apocalyptic number.

It is an amenable number.

51893956473 is a deficient number, since it is larger than the sum of its proper divisors (20945693127).

51893956473 is a wasteful number, since it uses less digits than its factorization.

51893956473 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75352.

The product of its digits is 24494400, while the sum is 60.

The spelling of 51893956473 in words is "fifty-one billion, eight hundred ninety-three million, nine hundred fifty-six thousand, four hundred seventy-three".

Divisors: 1 3 19 57 15121 45363 60209 180627 287299 861897 1143971 3431913 910420289 2731260867 17297985491 51893956473