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55841280 = 293511661
BaseRepresentation
bin1101010100000…
…1001000000000
310220002000211120
43111001020000
5103243410110
65312512240
71245433365
oct325011000
9126060746
1055841280
1129580420
121684b680
13b7520a1
1475b846c
154d80870
hex3541200

55841280 has 160 divisors (see below), whose sum is σ = 195041088. Its totient is φ = 13516800.

The previous prime is 55841273. The next prime is 55841297. The reversal of 55841280 is 8214855.

It is a tau number, because it is divible by the number of its divisors (160).

It is a Harshad number since it is a multiple of its sum of digits (33).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 84150 + ... + 84810.

Almost surely, 255841280 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 55841280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (97520544).

55841280 is an abundant number, since it is smaller than the sum of its proper divisors (139199808).

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

55841280 is a wasteful number, since it uses less digits than its factorization.

55841280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 698 (or 682 counting only the distinct ones).

The product of its (nonzero) digits is 12800, while the sum is 33.

The square root of 55841280 is about 7472.7023224534. The cubic root of 55841280 is about 382.2244416272.

The spelling of 55841280 in words is "fifty-five million, eight hundred forty-one thousand, two hundred eighty".

Divisors: 1 2 3 4 5 6 8 10 11 12 15 16 20 22 24 30 32 33 40 44 48 55 60 64 66 80 88 96 110 120 128 132 160 165 176 192 220 240 256 264 320 330 352 384 440 480 512 528 640 660 661 704 768 880 960 1056 1280 1320 1322 1408 1536 1760 1920 1983 2112 2560 2640 2644 2816 3305 3520 3840 3966 4224 5280 5288 5632 6610 7040 7271 7680 7932 8448 9915 10560 10576 13220 14080 14542 15864 16896 19830 21120 21152 21813 26440 28160 29084 31728 36355 39660 42240 42304 43626 52880 58168 63456 72710 79320 84480 84608 87252 105760 109065 116336 126912 145420 158640 169216 174504 211520 218130 232672 253824 290840 317280 338432 349008 423040 436260 465344 507648 581680 634560 698016 846080 872520 930688 1015296 1163360 1269120 1396032 1692160 1745040 1861376 2326720 2538240 2792064 3490080 3722752 4653440 5076480 5584128 6980160 9306880 11168256 13960320 18613760 27920640 55841280