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115105445331 = 3139276032243
BaseRepresentation
bin110101100110011010…
…0011011010111010011
3102000002220012110201220
41223030310123113103
53341213443222311
6124513445100123
711213264066502
oct1531464332723
9360086173656
10115105445331
11448a8028818
121a3846b7643
13ab15157986
1457dd292839
152eda42c206
hex1accd1b5d3

115105445331 has 8 divisors (see below), whose sum is σ = 154578056640. Its totient is φ = 76184898792.

The previous prime is 115105445261. The next prime is 115105445341. The reversal of 115105445331 is 133544501511.

It is a happy number.

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

It is a de Polignac number, because none of the positive numbers 2k-115105445331 is a prime.

It is a super-2 number, since 2×1151054453312 (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 115105445292 and 115105445301.

It is not an unprimeable number, because it can be changed into a prime (115105445341) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 138015705 + ... + 138016538.

It is an arithmetic number, because the mean of its divisors is an integer number (19322257080).

Almost surely, 2115105445331 is an apocalyptic number.

115105445331 is a deficient number, since it is larger than the sum of its proper divisors (39472611309).

115105445331 is a wasteful number, since it uses less digits than its factorization.

115105445331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 276032385.

The product of its (nonzero) digits is 18000, while the sum is 33.

Adding to 115105445331 its reverse (133544501511), we get a palindrome (248649946842).

The spelling of 115105445331 in words is "one hundred fifteen billion, one hundred five million, four hundred forty-five thousand, three hundred thirty-one".

Divisors: 1 3 139 417 276032243 828096729 38368481777 115105445331