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51104412 = 22331632903
BaseRepresentation
bin1100001011110…
…0101010011100
310120011101002000
43002330222130
5101040320122
65023202300
71160244312
oct302745234
9116141060
1051104412
1126935557
1215146390
13a783cc8
146b040b2
1547470ac
hex30bca9c

51104412 has 48 divisors (see below), whose sum is σ = 133351680. Its totient is φ = 16924464.

The previous prime is 51104407. The next prime is 51104447. The reversal of 51104412 is 21440115.

51104412 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×511044123 (a number of 24 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16153 + ... + 19055.

It is an arithmetic number, because the mean of its divisors is an integer number (2778160).

Almost surely, 251104412 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 51104412, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (66675840).

51104412 is an abundant number, since it is smaller than the sum of its proper divisors (82247268).

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

51104412 is a wasteful number, since it uses less digits than its factorization.

51104412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3079 (or 3071 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 18.

The square root of 51104412 is about 7148.7349929900. The cubic root of 51104412 is about 371.0958792983.

Adding to 51104412 its reverse (21440115), we get a palindrome (72544527).

The spelling of 51104412 in words is "fifty-one million, one hundred four thousand, four hundred twelve".

Divisors: 1 2 3 4 6 9 12 18 27 36 54 108 163 326 489 652 978 1467 1956 2903 2934 4401 5806 5868 8709 8802 11612 17418 17604 26127 34836 52254 78381 104508 156762 313524 473189 946378 1419567 1892756 2839134 4258701 5678268 8517402 12776103 17034804 25552206 51104412