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2105412553 = 19331334777
BaseRepresentation
bin111110101111110…
…0000101111001001
312102201201001001201
41331133200233021
513302441200203
6544530144201
7103113466006
oct17537405711
95381631051
102105412553
119904a5682
124a9122061
1327726465a
1415d8988ad
15c4c85e1d
hex7d7e0bc9

2105412553 has 8 divisors (see below), whose sum is σ = 2222925920. Its totient is φ = 1988569440.

The previous prime is 2105412539. The next prime is 2105412559. The reversal of 2105412553 is 3552145012.

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 2105412553 - 29 = 2105412041 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2105412559) 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, 161100 + ... + 173677.

It is an arithmetic number, because the mean of its divisors is an integer number (277865740).

Almost surely, 22105412553 is an apocalyptic number.

It is an amenable number.

2105412553 is a deficient number, since it is larger than the sum of its proper divisors (117513367).

2105412553 is a wasteful number, since it uses less digits than its factorization.

2105412553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 335127.

The product of its (nonzero) digits is 6000, while the sum is 28.

The square root of 2105412553 is about 45884.7747406479. The cubic root of 2105412553 is about 1281.6784120148.

Adding to 2105412553 its reverse (3552145012), we get a palindrome (5657557565).

The spelling of 2105412553 in words is "two billion, one hundred five million, four hundred twelve thousand, five hundred fifty-three".

Divisors: 1 19 331 6289 334777 6360763 110811187 2105412553