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51053053849 = 761119562187
BaseRepresentation
bin101111100010111111…
…111100011110011001
311212202222022211221021
4233202333330132121
51314024040210344
635241540042441
73455066540410
oct574277743631
9155688284837
1051053053849
111a719132a96
129a89693421
134a77c94305
14268452c477
1514dc055b84
hexbe2ffc799

51053053849 has 8 divisors (see below), whose sum is σ = 59302845248. Its totient is φ = 43042386960.

The previous prime is 51053053841. The next prime is 51053053853. The reversal of 51053053849 is 94835035015.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 51053053849 - 23 = 51053053841 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51053053841) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 59780667 + ... + 59781520.

It is an arithmetic number, because the mean of its divisors is an integer number (7412855656).

Almost surely, 251053053849 is an apocalyptic number.

It is an amenable number.

51053053849 is a deficient number, since it is larger than the sum of its proper divisors (8249791399).

51053053849 is a wasteful number, since it uses less digits than its factorization.

51053053849 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 119562255.

The product of its (nonzero) digits is 324000, while the sum is 43.

The spelling of 51053053849 in words is "fifty-one billion, fifty-three million, fifty-three thousand, eight hundred forty-nine".

Divisors: 1 7 61 427 119562187 836935309 7293293407 51053053849