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55884800 = 210523759
BaseRepresentation
bin1101010100101…
…1110000000000
310220011020112102
43111023300000
5103301303200
65313445532
71246004306
oct325136000
9126136472
1055884800
1129600094
12168708a8
13b768b3a
1475ca276
154d8d6d5
hex354bc00

55884800 has 132 divisors (see below), whose sum is σ = 144681960. Its totient is φ = 21381120.

The previous prime is 55884781. The next prime is 55884839. The reversal of 55884800 is 848855.

It is a super-2 number, since 2×558848002 = 6246221742080000, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 947171 + ... + 947229.

Almost surely, 255884800 is an apocalyptic number.

55884800 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55884800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (72340980).

55884800 is an abundant number, since it is smaller than the sum of its proper divisors (88797160).

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

55884800 is a wasteful number, since it uses less digits than its factorization.

55884800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126 (or 103 counting only the distinct ones).

The product of its (nonzero) digits is 51200, while the sum is 38.

The square root of 55884800 is about 7475.6136871831. The cubic root of 55884800 is about 382.3237116071.

It can be divided in two parts, 558 and 84800, that added together give a palindrome (85358).

The spelling of 55884800 in words is "fifty-five million, eight hundred eighty-four thousand, eight hundred".

Divisors: 1 2 4 5 8 10 16 20 25 32 37 40 50 59 64 74 80 100 118 128 148 160 185 200 236 256 295 296 320 370 400 472 512 590 592 640 740 800 925 944 1024 1180 1184 1280 1475 1480 1600 1850 1888 2183 2360 2368 2560 2950 2960 3200 3700 3776 4366 4720 4736 5120 5900 5920 6400 7400 7552 8732 9440 9472 10915 11800 11840 12800 14800 15104 17464 18880 18944 21830 23600 23680 25600 29600 30208 34928 37760 37888 43660 47200 47360 54575 59200 60416 69856 75520 87320 94400 94720 109150 118400 139712 151040 174640 188800 189440 218300 236800 279424 302080 349280 377600 436600 473600 558848 698560 755200 873200 947200 1117696 1397120 1510400 1746400 2235392 2794240 3492800 5588480 6985600 11176960 13971200 27942400 55884800