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55454590880 = 2551359451879
BaseRepresentation
bin110011101001010110…
…011110011110100000
312022010201121002122022
4303221112132132200
51402032333402010
641250412201012
74002134150033
oct635126363640
9168121532568
1055454590880
11215777419a7
12a8b7769168
1352c9b44ab0
142980d2701a
151698694d55
hexce959e7a0

55454590880 has 96 divisors (see below), whose sum is σ = 143480937600. Its totient is φ = 20128453632.

The previous prime is 55454590853. The next prime is 55454590889. The reversal of 55454590880 is 8809545455.

It is not an unprimeable number, because it can be changed into a prime (55454590889) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 103220 + ... + 348659.

It is an arithmetic number, because the mean of its divisors is an integer number (1494593100).

Almost surely, 255454590880 is an apocalyptic number.

It is an amenable number.

55454590880 is an abundant number, since it is smaller than the sum of its proper divisors (88026346720).

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

55454590880 is a wasteful number, since it uses less digits than its factorization.

55454590880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 451966 (or 451958 counting only the distinct ones).

The product of its (nonzero) digits is 5760000, while the sum is 53.

The spelling of 55454590880 in words is "fifty-five billion, four hundred fifty-four million, five hundred ninety thousand, eight hundred eighty".

Divisors: 1 2 4 5 8 10 13 16 20 26 32 40 52 59 65 80 104 118 130 160 208 236 260 295 416 472 520 590 767 944 1040 1180 1534 1888 2080 2360 3068 3835 4720 6136 7670 9440 12272 15340 24544 30680 61360 122720 451879 903758 1807516 2259395 3615032 4518790 5874427 7230064 9037580 11748854 14460128 18075160 23497708 26660861 29372135 36150320 46995416 53321722 58744270 72300640 93990832 106643444 117488540 133304305 187981664 213286888 234977080 266608610 346591193 426573776 469954160 533217220 693182386 853147552 939908320 1066434440 1386364772 1732955965 2132868880 2772729544 3465911930 4265737760 5545459088 6931823860 11090918176 13863647720 27727295440 55454590880