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54509937280 = 275432717309
BaseRepresentation
bin110010110001000010…
…111010001010000000
312012200220001201111221
4302301002322022000
51343114020443110
641012545044424
73636543551641
oct626102721200
9165626051457
1054509937280
1121132490747
12a693326714
1351a9215676
1428d16a56c8
1516407977da
hexcb10ba280

54509937280 has 128 divisors (see below), whose sum is σ = 133853702400. Its totient is φ = 21215416320.

The previous prime is 54509937277. The next prime is 54509937301. The reversal of 54509937280 is 8273990545.

It is a tau number, because it is divible by the number of its divisors (128).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7454266 + ... + 7461574.

It is an arithmetic number, because the mean of its divisors is an integer number (1045732050).

Almost surely, 254509937280 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 54509937280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (66926851200).

54509937280 is an abundant number, since it is smaller than the sum of its proper divisors (79343765120).

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

54509937280 is a wasteful number, since it uses less digits than its factorization.

54509937280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7642 (or 7630 counting only the distinct ones).

The product of its (nonzero) digits is 2721600, while the sum is 52.

The spelling of 54509937280 in words is "fifty-four billion, five hundred nine million, nine hundred thirty-seven thousand, two hundred eighty".

Divisors: 1 2 4 5 8 10 16 20 32 40 43 64 80 86 128 160 172 215 271 320 344 430 542 640 688 860 1084 1355 1376 1720 2168 2710 2752 3440 4336 5420 5504 6880 7309 8672 10840 11653 13760 14618 17344 21680 23306 27520 29236 34688 36545 43360 46612 58265 58472 73090 86720 93224 116530 116944 146180 173440 186448 233060 233888 292360 314287 372896 466120 467776 584720 628574 745792 932240 935552 1169440 1257148 1491584 1571435 1864480 1980739 2338880 2514296 3142870 3728960 3961478 4677760 5028592 6285740 7457920 7922956 9903695 10057184 12571480 15845912 19807390 20114368 25142960 31691824 39614780 40228736 50285920 63383648 79229560 85171777 100571840 126767296 158459120 170343554 201143680 253534592 316918240 340687108 425858885 633836480 681374216 851717770 1267672960 1362748432 1703435540 2725496864 3406871080 5450993728 6813742160 10901987456 13627484320 27254968640 54509937280