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2108028101 = 17891519227
BaseRepresentation
bin111110110100101…
…1111010011000101
312102220121220220212
41331221133103011
513304123344401
6545102205205
7103144641344
oct17551372305
95386556825
102108028101
11991a21793
124a9b83805
1327796c00a
1415dd79b5b
15c5100dbb
hex7da5f4c5

2108028101 has 16 divisors (see below), whose sum is σ = 2272302720. Its totient is φ = 1948531200.

The previous prime is 2108028073. The next prime is 2108028133. The reversal of 2108028101 is 1018208012.

It is a happy number.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-2108028101 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2108028151) 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 15 ways as a sum of consecutive naturals, for example, 223850 + ... + 233076.

It is an arithmetic number, because the mean of its divisors is an integer number (142018920).

Almost surely, 22108028101 is an apocalyptic number.

It is an amenable number.

2108028101 is a deficient number, since it is larger than the sum of its proper divisors (164274619).

2108028101 is a wasteful number, since it uses less digits than its factorization.

2108028101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9484.

The product of its (nonzero) digits is 256, while the sum is 23.

The square root of 2108028101 is about 45913.2671566727. The cubic root of 2108028101 is about 1282.2089341966.

The spelling of 2108028101 in words is "two billion, one hundred eight million, twenty-eight thousand, one hundred one".

Divisors: 1 17 89 151 1513 2567 9227 13439 156859 228463 821203 1393277 13960451 23685709 124001653 2108028101