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2108441445 = 351112778433
BaseRepresentation
bin111110110101100…
…0100001101100101
312102221101220220220
41331223010031211
513304230111240
6545115114553
7103151312415
oct17553041545
95387356826
102108441445
119921842a0
124aa142a59
13277a851b6
14160046645
15c51835d0
hex7dac4365

2108441445 has 16 divisors (see below), whose sum is σ = 3680188992. Its totient is φ = 1022274560.

The previous prime is 2108441443. The next prime is 2108441453. The reversal of 2108441445 is 5441448012.

It is not a de Polignac number, because 2108441445 - 21 = 2108441443 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2108441443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6389052 + ... + 6389381.

It is an arithmetic number, because the mean of its divisors is an integer number (230011812).

Almost surely, 22108441445 is an apocalyptic number.

It is an amenable number.

2108441445 is a deficient number, since it is larger than the sum of its proper divisors (1571747547).

2108441445 is a wasteful number, since it uses less digits than its factorization.

2108441445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12778452.

The product of its (nonzero) digits is 20480, while the sum is 33.

The square root of 2108441445 is about 45917.7682928951. The cubic root of 2108441445 is about 1282.2927342706.

Adding to 2108441445 its reverse (5441448012), we get a palindrome (7549889457).

The spelling of 2108441445 in words is "two billion, one hundred eight million, four hundred forty-one thousand, four hundred forty-five".

Divisors: 1 3 5 11 15 33 55 165 12778433 38335299 63892165 140562763 191676495 421688289 702813815 2108441445