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55831839954 = 23114170929101
BaseRepresentation
bin110011111111110101…
…100100010011010010
312100010000110100002020
4303333311210103102
51403320422334304
641352050032310
74014364544412
oct637765442322
9170100410066
1055831839954
11217506887a0
12a9a1b78696
13535a04bab7
1429b9088642
1516bb8625d9
hexcffd644d2

55831839954 has 64 divisors (see below), whose sum is σ = 124966316160. Its totient is φ = 16482240000.

The previous prime is 55831839919. The next prime is 55831839961. The reversal of 55831839954 is 45993813855.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1904004 + ... + 1933104.

It is an arithmetic number, because the mean of its divisors is an integer number (1952598690).

Almost surely, 255831839954 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55831839954, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (62483158080).

55831839954 is an abundant number, since it is smaller than the sum of its proper divisors (69134476206).

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

55831839954 is a wasteful number, since it uses less digits than its factorization.

55831839954 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29867.

The product of its digits is 23328000, while the sum is 60.

The spelling of 55831839954 in words is "fifty-five billion, eight hundred thirty-one million, eight hundred thirty-nine thousand, nine hundred fifty-four".

Divisors: 1 2 3 6 11 22 33 41 66 82 123 246 451 709 902 1353 1418 2127 2706 4254 7799 15598 23397 29069 29101 46794 58138 58202 87207 87303 174414 174606 319759 320111 639518 640222 959277 960333 1193141 1918554 1920666 2386282 3579423 7158846 13124551 20632609 26249102 39373653 41265218 61897827 78747306 123795654 226958699 453917398 680876097 845936969 1361752194 1691873938 2537810907 5075621814 9305306659 18610613318 27915919977 55831839954