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51672789327 = 361622145389
BaseRepresentation
bin110000000111111100…
…000011000101001111
311221101011110200012010
4300013330003011033
51321311213224302
635423235112303
73506333314365
oct600774030517
9157334420163
1051672789327
111aa06a40475
12a021142693
134b464acab3
142702971635
15152667116c
hexc07f0314f

51672789327 has 16 divisors (see below), whose sum is σ = 70039311840. Its totient is φ = 33877603200.

The previous prime is 51672789319. The next prime is 51672789349. The reversal of 51672789327 is 72398727615.

It is not a de Polignac number, because 51672789327 - 23 = 51672789319 is a prime.

It is a super-2 number, since 2×516727893272 (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51672789307) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 1115749 + ... + 1161137.

It is an arithmetic number, because the mean of its divisors is an integer number (4377456990).

Almost surely, 251672789327 is an apocalyptic number.

51672789327 is a deficient number, since it is larger than the sum of its proper divisors (18366522513).

51672789327 is a wasteful number, since it uses less digits than its factorization.

51672789327 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51674.

The product of its digits is 8890560, while the sum is 57.

The spelling of 51672789327 in words is "fifty-one billion, six hundred seventy-two million, seven hundred eighty-nine thousand, three hundred twenty-seven".

Divisors: 1 3 61 183 6221 18663 45389 136167 379481 1138443 2768729 8306187 282364969 847094907 17224263109 51672789327