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105181441920 = 273553072203
BaseRepresentation
bin110000111110101001…
…1010110111110000000
3101001111021102212100000
41201331103112332000
53210402422120140
6120153015200000
710412331335112
oct1417523267600
9331437385300
10105181441920
1140675200105
1218475076000
139bc31285c9
14513b2733b2
152b09081a30
hex187d4d6f80

105181441920 has 384 divisors, whose sum is σ = 378055117440. Its totient is φ = 27944331264.

The previous prime is 105181441891. The next prime is 105181441949. The reversal of 105181441920 is 29144181501.

105181441920 is a `hidden beast` number, since 1 + 0 + 51 + 81 + 441 + 92 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (105181441891) and next prime (105181441949).

It is a tau number, because it is divible by the number of its divisors (384).

It is a super-2 number, since 2×1051814419202 (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

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 47 ways as a sum of consecutive naturals, for example, 47743539 + ... + 47745741.

It is an arithmetic number, because the mean of its divisors is an integer number (984518535).

Almost surely, 2105181441920 is an apocalyptic number.

105181441920 is a gapful number since it is divisible by the number (10) 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 105181441920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (189027558720).

105181441920 is an abundant number, since it is smaller than the sum of its proper divisors (272873675520).

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

105181441920 is an equidigital number, since it uses as much as digits as its factorization.

105181441920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2544 (or 2520 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 36.

The spelling of 105181441920 in words is "one hundred five billion, one hundred eighty-one million, four hundred forty-one thousand, nine hundred twenty".