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51324104 = 23131932557
BaseRepresentation
bin1100001111001…
…0010011001000
310120120112102202
43003302103020
5101114332404
65032015332
71162150646
oct303622310
9116515382
1051324104
1126a75617
1215231548
13a82ccc0
146b60196
15478c21e
hex30f24c8

51324104 has 32 divisors (see below), whose sum is σ = 104212920. Its totient is φ = 23556096.

The previous prime is 51324103. The next prime is 51324107. The reversal of 51324104 is 40142315.

It can be written as a sum of positive squares in 4 ways, for example, as 27019204 + 24304900 = 5198^2 + 4930^2 .

It is not an unprimeable number, because it can be changed into a prime (51324101) 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, 18794 + ... + 21350.

Almost surely, 251324104 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 51324104, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (52106460).

51324104 is an abundant number, since it is smaller than the sum of its proper divisors (52888816).

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

51324104 is a wasteful number, since it uses less digits than its factorization.

51324104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2769 (or 2765 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 51324104 is about 7164.0843099450. The cubic root of 51324104 is about 371.6268853058.

Adding to 51324104 its reverse (40142315), we get a palindrome (91466419).

The spelling of 51324104 in words is "fifty-one million, three hundred twenty-four thousand, one hundred four".

Divisors: 1 2 4 8 13 26 52 104 193 386 772 1544 2509 2557 5018 5114 10036 10228 20072 20456 33241 66482 132964 265928 493501 987002 1974004 3948008 6415513 12831026 25662052 51324104