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109994705281 = 4571282118773
BaseRepresentation
bin110011001110000110…
…0100000000110000001
3101111220201102222101101
41212130030200012001
53300232121032111
6122310400134401
710642525365646
oct1463414400601
9344821388341
10109994705281
114271516410a
1219399007401
13a4ac394c36
145476605dcd
152cdb8edbc1
hex199c320181

109994705281 has 8 divisors (see below), whose sum is σ = 110249864424. Its totient is φ = 109739610240.

The previous prime is 109994705257. The next prime is 109994705341. The reversal of 109994705281 is 182507499901.

It can be written as a sum of positive squares in 4 ways, for example, as 45813549681 + 64181155600 = 214041^2 + 253340^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 109994705281 - 213 = 109994697089 is a prime.

It is a super-2 number, since 2×1099947052812 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (109994705231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5849811 + ... + 5868583.

It is an arithmetic number, because the mean of its divisors is an integer number (13781233053).

Almost surely, 2109994705281 is an apocalyptic number.

It is an amenable number.

109994705281 is a deficient number, since it is larger than the sum of its proper divisors (255159143).

109994705281 is a wasteful number, since it uses less digits than its factorization.

109994705281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32051.

The product of its (nonzero) digits is 1632960, while the sum is 55.

The spelling of 109994705281 in words is "one hundred nine billion, nine hundred ninety-four million, seven hundred five thousand, two hundred eighty-one".

Divisors: 1 457 12821 18773 5859197 8579261 240688633 109994705281