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2108061634 = 27221510833
BaseRepresentation
bin111110110100110…
…0111011111000010
312102220200121220211
41331221213133002
513304130433014
6545103024334
7103145141200
oct17551473702
95386617824
102108061634
11991a449a8
124a9b9b0aa
13277981363
1415dd88070
15c510acc4
hex7da677c2

2108061634 has 12 divisors (see below), whose sum is σ = 3678352614. Its totient is φ = 903454944.

The previous prime is 2108061587. The next prime is 2108061673. The reversal of 2108061634 is 4361608012.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 1373814225 + 734247409 = 37065^2 + 27097^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2108061596 and 2108061605.

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 10755319 + ... + 10755514.

Almost surely, 22108061634 is an apocalyptic number.

2108061634 is a deficient number, since it is larger than the sum of its proper divisors (1570290980).

2108061634 is a wasteful number, since it uses less digits than its factorization.

2108061634 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21510849 (or 21510842 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 31.

The square root of 2108061634 is about 45913.6323328922. The cubic root of 2108061634 is about 1282.2157329807.

Adding to 2108061634 its reverse (4361608012), we get a palindrome (6469669646).

The spelling of 2108061634 in words is "two billion, one hundred eight million, sixty-one thousand, six hundred thirty-four".

Divisors: 1 2 7 14 49 98 21510833 43021666 150575831 301151662 1054030817 2108061634