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51826968 = 23321494831
BaseRepresentation
bin1100010110110…
…1000100011000
310121112002020100
43011231010120
5101231430333
65050455400
71166344014
oct305550430
9117462210
1051826968
1127289406
1215434560
13a977b5b
146c51544
15483b213
hex316d118

51826968 has 48 divisors (see below), whose sum is σ = 141336000. Its totient is φ = 17156160.

The previous prime is 51826961. The next prime is 51826969. The reversal of 51826968 is 86962815.

It is a super-2 number, since 2×518269682 = 5372069224146048, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51826961) 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 11 ways as a sum of consecutive naturals, for example, 8313 + ... + 13143.

It is an arithmetic number, because the mean of its divisors is an integer number (2944500).

Almost surely, 251826968 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 51826968, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (70668000).

51826968 is an abundant number, since it is smaller than the sum of its proper divisors (89509032).

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

51826968 is a wasteful number, since it uses less digits than its factorization.

51826968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4992 (or 4985 counting only the distinct ones).

The product of its digits is 207360, while the sum is 45.

The square root of 51826968 is about 7199.0949431161. The cubic root of 51826968 is about 372.8366531468.

The spelling of 51826968 in words is "fifty-one million, eight hundred twenty-six thousand, nine hundred sixty-eight".

Divisors: 1 2 3 4 6 8 9 12 18 24 36 72 149 298 447 596 894 1192 1341 1788 2682 3576 4831 5364 9662 10728 14493 19324 28986 38648 43479 57972 86958 115944 173916 347832 719819 1439638 2159457 2879276 4318914 5758552 6478371 8637828 12956742 17275656 25913484 51826968