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54068040 = 23335133851
BaseRepresentation
bin1100111001000…
…0001101001000
310202201221102000
43032100031020
5102320134130
65210511000
71224366525
oct316201510
9122657360
1054068040
112857a134
1216135460
13b280c30
14727614c
154b30260
hex3390348

54068040 has 128 divisors (see below), whose sum is σ = 194140800. Its totient is φ = 13305600.

The previous prime is 54068017. The next prime is 54068051. The reversal of 54068040 is 4086045.

54068040 is a `hidden beast` number, since 540 + 6 + 80 + 40 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 54067995 and 54068013.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12115 + ... + 15965.

It is an arithmetic number, because the mean of its divisors is an integer number (1516725).

Almost surely, 254068040 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 54068040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (97070400).

54068040 is an abundant number, since it is smaller than the sum of its proper divisors (140072760).

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

54068040 is a wasteful number, since it uses less digits than its factorization.

54068040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3884 (or 3874 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 27.

The square root of 54068040 is about 7353.0973065777. The cubic root of 54068040 is about 378.1349983924.

The spelling of 54068040 in words is "fifty-four million, sixty-eight thousand, forty".

Divisors: 1 2 3 4 5 6 8 9 10 12 13 15 18 20 24 26 27 30 36 39 40 45 52 54 60 65 72 78 90 104 108 117 120 130 135 156 180 195 216 234 260 270 312 351 360 390 468 520 540 585 702 780 936 1080 1170 1404 1560 1755 2340 2808 3510 3851 4680 7020 7702 11553 14040 15404 19255 23106 30808 34659 38510 46212 50063 57765 69318 77020 92424 100126 103977 115530 138636 150189 154040 173295 200252 207954 231060 250315 277272 300378 346590 400504 415908 450567 462120 500630 519885 600756 693180 750945 831816 901134 1001260 1039770 1201512 1351701 1386360 1501890 1802268 2002520 2079540 2252835 2703402 3003780 3604536 4159080 4505670 5406804 6007560 6758505 9011340 10813608 13517010 18022680 27034020 54068040