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51484696417 = 711977684373
BaseRepresentation
bin101111111100101110…
…100001111101100001
311220220001112120020001
4233330232201331201
51320420040241132
635352435420001
73501560461510
oct577456417541
9156801476201
1051484696417
111a91a850490
129b8a154601
134b1653440b
1426c59ac677
151514db9ce7
hexbfcba1f61

51484696417 has 16 divisors (see below), whose sum is σ = 64254506112. Its totient is φ = 40076824320.

The previous prime is 51484696387. The next prime is 51484696447. The reversal of 51484696417 is 71469648415.

It is an interprime number because it is at equal distance from previous prime (51484696387) and next prime (51484696447).

It is a cyclic number.

It is not a de Polignac number, because 51484696417 - 227 = 51350478689 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51484696447) 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, 266958 + ... + 417415.

It is an arithmetic number, because the mean of its divisors is an integer number (4015906632).

Almost surely, 251484696417 is an apocalyptic number.

It is an amenable number.

51484696417 is a deficient number, since it is larger than the sum of its proper divisors (12769809695).

51484696417 is a wasteful number, since it uses less digits than its factorization.

51484696417 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 685368.

The product of its digits is 5806080, while the sum is 55.

The spelling of 51484696417 in words is "fifty-one billion, four hundred eighty-four million, six hundred ninety-six thousand, four hundred seventeen".

Divisors: 1 7 11 77 977 6839 10747 75229 684373 4790611 7528103 52696721 668632421 4680426947 7354956631 51484696417