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51035420111 = 136959564133
BaseRepresentation
bin101111100001111100…
…101011010111001111
311212201202010221222212
4233201330223113033
51314010031420421
635240110101035
73454463625164
oct574174532717
9155652127885
1051035420111
111a70a189555
129a837aa77b
134a7442bc50
14268205c06b
1514da720e5b
hexbe1f2b5cf

51035420111 has 8 divisors (see below), whose sum is σ = 54969216960. Its totient is φ = 47102765472.

The previous prime is 51035420087. The next prime is 51035420159. The reversal of 51035420111 is 11102453015.

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 51035420111 - 218 = 51035157967 is a prime.

It is a super-2 number, since 2×510354201112 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51035420011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 191600 + ... + 372533.

It is an arithmetic number, because the mean of its divisors is an integer number (6871152120).

Almost surely, 251035420111 is an apocalyptic number.

51035420111 is a deficient number, since it is larger than the sum of its proper divisors (3933796849).

51035420111 is a wasteful number, since it uses less digits than its factorization.

51035420111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 571105.

The product of its (nonzero) digits is 600, while the sum is 23.

Adding to 51035420111 its reverse (11102453015), we get a palindrome (62137873126).

The spelling of 51035420111 in words is "fifty-one billion, thirty-five million, four hundred twenty thousand, one hundred eleven".

Divisors: 1 13 6959 90467 564133 7333729 3925801547 51035420111