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2105284432790 = 257112734135627
BaseRepresentation
bin11110101000101100101…
…110110001001110010110
321110021002220002012012202
4132220230232301032112
5233443110303322130
64251053155444502
7305046624263120
oct36505456611626
97407086065182
102105284432790
117419341a5510
122a00275b6732
131236b1b0c906
1473c79692210
1539b6b105145
hex1ea2cbb1396

2105284432790 has 32 divisors (see below), whose sum is σ = 4724586365184. Its totient is φ = 656192550240.

The previous prime is 2105284432787. The next prime is 2105284432807. The reversal of 2105284432790 is 972344825012.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1367067044 + ... + 1367068583.

It is an arithmetic number, because the mean of its divisors is an integer number (147643323912).

Almost surely, 22105284432790 is an apocalyptic number.

2105284432790 is an abundant number, since it is smaller than the sum of its proper divisors (2619301932394).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2105284432790 is a wasteful number, since it uses less digits than its factorization.

2105284432790 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2734135652.

The product of its (nonzero) digits is 967680, while the sum is 47.

The spelling of 2105284432790 in words is "two trillion, one hundred five billion, two hundred eighty-four million, four hundred thirty-two thousand, seven hundred ninety".

Divisors: 1 2 5 7 10 11 14 22 35 55 70 77 110 154 385 770 2734135627 5468271254 13670678135 19138949389 27341356270 30075491897 38277898778 60150983794 95694746945 150377459485 191389493890 210528443279 300754918970 421056886558 1052642216395 2105284432790