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51755011 = 711672143
BaseRepresentation
bin1100010101101…
…1100000000011
310121101102112021
43011123200003
5101222130021
65045142311
71165624150
oct305334003
9117342467
1051755011
112723a340
12153ba997
13a951189
146c33227
154824c41
hex315b803

51755011 has 8 divisors (see below), whose sum is σ = 64525824. Its totient is φ = 40328520.

The previous prime is 51755009. The next prime is 51755047. The reversal of 51755011 is 11055715.

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 51755011 - 21 = 51755009 is a prime.

It is a super-2 number, since 2×517550112 = 5357162327220242, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (51755051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 335995 + ... + 336148.

It is an arithmetic number, because the mean of its divisors is an integer number (8065728).

Almost surely, 251755011 is an apocalyptic number.

51755011 is a deficient number, since it is larger than the sum of its proper divisors (12770813).

51755011 is a wasteful number, since it uses less digits than its factorization.

51755011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 672161.

The product of its (nonzero) digits is 875, while the sum is 25.

The square root of 51755011 is about 7194.0955651145. The cubic root of 51755011 is about 372.6640233761.

The spelling of 51755011 in words is "fifty-one million, seven hundred fifty-five thousand, eleven".

Divisors: 1 7 11 77 672143 4705001 7393573 51755011