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54681360 = 2435713209
BaseRepresentation
bin1101000010010…
…1111100010000
310210220002201120
43100211330100
5102444300420
65232002240
71232532606
oct320457420
9123802646
1054681360
1128958a08
1216390380
13b437146
147395876
154c01d40
hex3425f10

54681360 has 80 divisors (see below), whose sum is σ = 171953280. Its totient is φ = 14371840.

The previous prime is 54681359. The next prime is 54681371. The reversal of 54681360 is 6318645.

It is a tau number, because it is divible by the number of its divisors (80).

It is a super-2 number, since 2×546813602 = 5980102262899200, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 15436 + ... + 18644.

It is an arithmetic number, because the mean of its divisors is an integer number (2149416).

Almost surely, 254681360 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 54681360, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (85976640).

54681360 is an abundant number, since it is smaller than the sum of its proper divisors (117271920).

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

54681360 is a wasteful number, since it uses less digits than its factorization.

54681360 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3296 (or 3290 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 33.

The square root of 54681360 is about 7394.6845774516. The cubic root of 54681360 is about 379.5594155004.

The spelling of 54681360 in words is "fifty-four million, six hundred eighty-one thousand, three hundred sixty".

Divisors: 1 2 3 4 5 6 8 10 12 15 16 20 24 30 40 48 60 71 80 120 142 213 240 284 355 426 568 710 852 1065 1136 1420 1704 2130 2840 3209 3408 4260 5680 6418 8520 9627 12836 16045 17040 19254 25672 32090 38508 48135 51344 64180 77016 96270 128360 154032 192540 227839 256720 385080 455678 683517 770160 911356 1139195 1367034 1822712 2278390 2734068 3417585 3645424 4556780 5468136 6835170 9113560 10936272 13670340 18227120 27340680 54681360