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51080832 = 27321129139
BaseRepresentation
bin1100001011011…
…0111010000000
310120010011201200
43002312322000
5101034041312
65022501200
71160115465
oct302667200
9116104650
1051080832
1126919870
1215134800
13a77635a
146ad966c
1547400dc
hex30b6e80

51080832 has 192 divisors, whose sum is σ = 167076000. Its totient is φ = 14837760.

The previous prime is 51080819. The next prime is 51080833. The reversal of 51080832 is 23808015.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (192).

It is a junction number, because it is equal to n+sod(n) for n = 51080796 and 51080805.

It is not an unprimeable number, because it can be changed into a prime (51080833) 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 23 ways as a sum of consecutive naturals, for example, 367419 + ... + 367557.

Almost surely, 251080832 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 51080832, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (83538000).

51080832 is an abundant number, since it is smaller than the sum of its proper divisors (115995168).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

51080832 is a wasteful number, since it uses less digits than its factorization.

51080832 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 199 (or 184 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 27.

The square root of 51080832 is about 7147.0855598628. The cubic root of 51080832 is about 371.0387949444.

Adding to 51080832 its reverse (23808015), we get a palindrome (74888847).

The spelling of 51080832 in words is "fifty-one million, eighty thousand, eight hundred thirty-two".