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51460422 = 23134367229
BaseRepresentation
bin1100010001001…
…1100101000110
310120211110102120
43010103211012
5101133213142
65034550410
71163256246
oct304234506
9116743376
1051460422
1127058a82
1215298406
13a87a070
146b97b26
1547b77ec
hex3113946

51460422 has 64 divisors (see below), whose sum is σ = 115610880. Its totient is φ = 15168384.

The previous prime is 51460397. The next prime is 51460429. The reversal of 51460422 is 22406415.

It is a junction number, because it is equal to n+sod(n) for n = 51460392 and 51460401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51460429) 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 31 ways as a sum of consecutive naturals, for example, 224604 + ... + 224832.

It is an arithmetic number, because the mean of its divisors is an integer number (1806420).

Almost surely, 251460422 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 51460422, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (57805440).

51460422 is an abundant number, since it is smaller than the sum of its proper divisors (64150458).

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

51460422 is a wasteful number, since it uses less digits than its factorization.

51460422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 357.

The product of its (nonzero) digits is 1920, while the sum is 24.

The square root of 51460422 is about 7173.5919872822. The cubic root of 51460422 is about 371.9556109597.

Adding to 51460422 its reverse (22406415), we get a palindrome (73866837).

The spelling of 51460422 in words is "fifty-one million, four hundred sixty thousand, four hundred twenty-two".

Divisors: 1 2 3 6 13 26 39 43 67 78 86 129 134 201 229 258 402 458 559 687 871 1118 1374 1677 1742 2613 2881 2977 3354 5226 5762 5954 8643 8931 9847 15343 17286 17862 19694 29541 30686 37453 46029 59082 74906 92058 112359 128011 199459 224718 256022 384033 398918 598377 659749 768066 1196754 1319498 1979247 3958494 8576737 17153474 25730211 51460422