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2108023845 = 35140534923
BaseRepresentation
bin111110110100101…
…1110010000100101
312102220121201002020
41331221132100211
513304123230340
6545102133353
7103144623054
oct17551362045
95386551066
102108023845
11991a19574
124a9b81259
1327796a0b5
1415dd7839b
15c50ee9d0
hex7da5e425

2108023845 has 8 divisors (see below), whose sum is σ = 3372838176. Its totient is φ = 1124279376.

The previous prime is 2108023843. The next prime is 2108023849. The reversal of 2108023845 is 5483208012.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2108023845 - 21 = 2108023843 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2108023843) 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 7 ways as a sum of consecutive naturals, for example, 70267447 + ... + 70267476.

It is an arithmetic number, because the mean of its divisors is an integer number (421604772).

Almost surely, 22108023845 is an apocalyptic number.

It is an amenable number.

2108023845 is a deficient number, since it is larger than the sum of its proper divisors (1264814331).

2108023845 is a wasteful number, since it uses less digits than its factorization.

2108023845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140534931.

The product of its (nonzero) digits is 15360, while the sum is 33.

The square root of 2108023845 is about 45913.2208083903. The cubic root of 2108023845 is about 1282.2080712914.

The spelling of 2108023845 in words is "two billion, one hundred eight million, twenty-three thousand, eight hundred forty-five".

Divisors: 1 3 5 15 140534923 421604769 702674615 2108023845