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2105248043 = 6154416343
BaseRepresentation
bin111110101111011…
…1000100100101011
312102201101200101202
41331132320210223
513302420414133
6544522434415
7103112212253
oct17536704453
95381350352
102105248043
119903a3018
124a9062a0b
13277207802
1415d854963
15c4c522e8
hex7d7b892b

2105248043 has 8 divisors (see below), whose sum is σ = 2140490976. Its totient is φ = 2070028800.

The previous prime is 2105248039. The next prime is 2105248081. The reversal of 2105248043 is 3408425012.

It is a happy number.

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 2105248043 - 22 = 2105248039 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2105247997 and 2105248015.

It is not an unprimeable number, because it can be changed into a prime (2105241043) 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 7 ways as a sum of consecutive naturals, for example, 328730 + ... + 335072.

It is an arithmetic number, because the mean of its divisors is an integer number (267561372).

Almost surely, 22105248043 is an apocalyptic number.

2105248043 is a deficient number, since it is larger than the sum of its proper divisors (35242933).

2105248043 is an equidigital number, since it uses as much as digits as its factorization.

2105248043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11845.

The product of its (nonzero) digits is 7680, while the sum is 29.

The square root of 2105248043 is about 45882.9820630700. The cubic root of 2105248043 is about 1281.6450291025.

The spelling of 2105248043 in words is "two billion, one hundred five million, two hundred forty-eight thousand, forty-three".

Divisors: 1 61 5441 6343 331901 386923 34512263 2105248043