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51352288 = 2513197389
BaseRepresentation
bin1100001111100…
…1001011100000
310120121222002121
43003321023200
5101121233123
65032354024
71162326061
oct303711340
9116558077
1051352288
1126a94809
1215245914
13a83ca90
146b6a568
15479575d
hex30f92e0

51352288 has 96 divisors (see below), whose sum is σ = 117482400. Its totient is φ = 21897216.

The previous prime is 51352267. The next prime is 51352289. The reversal of 51352288 is 88225315.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51352289) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 576948 + ... + 577036.

It is an arithmetic number, because the mean of its divisors is an integer number (1223775).

Almost surely, 251352288 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 51352288, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (58741200).

51352288 is an abundant number, since it is smaller than the sum of its proper divisors (66130112).

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

51352288 is a wasteful number, since it uses less digits than its factorization.

51352288 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 204 (or 196 counting only the distinct ones).

The product of its digits is 19200, while the sum is 34.

The square root of 51352288 is about 7166.0510743365. The cubic root of 51352288 is about 371.6948976346.

The spelling of 51352288 in words is "fifty-one million, three hundred fifty-two thousand, two hundred eighty-eight".

Divisors: 1 2 4 8 13 16 19 26 32 38 52 73 76 89 104 146 152 178 208 247 292 304 356 416 494 584 608 712 949 988 1157 1168 1387 1424 1691 1898 1976 2314 2336 2774 2848 3382 3796 3952 4628 5548 6497 6764 7592 7904 9256 11096 12994 13528 15184 18031 18512 21983 22192 25988 27056 30368 36062 37024 43966 44384 51976 54112 72124 84461 87932 103952 123443 144248 168922 175864 207904 246886 288496 337844 351728 493772 576992 675688 703456 987544 1351376 1604759 1975088 2702752 3209518 3950176 6419036 12838072 25676144 51352288