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51050650011 = 317016883337
BaseRepresentation
bin101111100010110110…
…110001100110011011
311212202210210201111020
4233202312301212123
51314022431300021
635241412333523
73455040236214
oct574266614633
9155683721436
1051050650011
111a717840a49
129a889142a3
134a7763211a
1426840a440b
1514dbc2d7c6
hexbe2db199b

51050650011 has 4 divisors (see below), whose sum is σ = 68067533352. Its totient is φ = 34033766672.

The previous prime is 51050650009. The next prime is 51050650031. The reversal of 51050650011 is 11005605015.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 51050650011 - 21 = 51050650009 is a prime.

It is a super-2 number, since 2×510506500112 (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (51050650031) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8508441666 + ... + 8508441671.

It is an arithmetic number, because the mean of its divisors is an integer number (17016883338).

Almost surely, 251050650011 is an apocalyptic number.

51050650011 is a deficient number, since it is larger than the sum of its proper divisors (17016883341).

51050650011 is a wasteful number, since it uses less digits than its factorization.

51050650011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17016883340.

The product of its (nonzero) digits is 750, while the sum is 24.

The spelling of 51050650011 in words is "fifty-one billion, fifty million, six hundred fifty thousand, eleven".

Divisors: 1 3 17016883337 51050650011