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2105412113 = 7833623773
BaseRepresentation
bin111110101111110…
…0000101000010001
312102201201000110102
41331133200220101
513302441141423
6544530142145
7103113464510
oct17537405021
95381630412
102105412113
119904a5312
124a9121955
132772643ac
1415d898677
15c4c85c28
hex7d7e0a11

2105412113 has 8 divisors (see below), whose sum is σ = 2435176128. Its totient is φ = 1782895824.

The previous prime is 2105412079. The next prime is 2105412119. The reversal of 2105412113 is 3112145012.

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 2105412113 - 214 = 2105395729 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2105412119) 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, 1811306 + ... + 1812467.

It is an arithmetic number, because the mean of its divisors is an integer number (304397016).

Almost surely, 22105412113 is an apocalyptic number.

It is an amenable number.

2105412113 is a deficient number, since it is larger than the sum of its proper divisors (329764015).

2105412113 is an equidigital number, since it uses as much as digits as its factorization.

2105412113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3623863.

The product of its (nonzero) digits is 240, while the sum is 20.

The square root of 2105412113 is about 45884.7699460289. The cubic root of 2105412113 is about 1281.6783227308.

Adding to 2105412113 its reverse (3112145012), we get a palindrome (5217557125).

The spelling of 2105412113 in words is "two billion, one hundred five million, four hundred twelve thousand, one hundred thirteen".

Divisors: 1 7 83 581 3623773 25366411 300773159 2105412113