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2105834172 = 2231320296653
BaseRepresentation
bin111110110000100…
…0111101010111100
312102202111110102020
41331201013222330
513303043143142
6544543200140
7103120203141
oct17541075274
95382443366
102105834172
11990763422
124a92a6050
13277381530
1415d9683c8
15c4d1acec
hex7d847abc

2105834172 has 48 divisors (see below), whose sum is σ = 5294987040. Its totient is φ = 647532288.

The previous prime is 2105834167. The next prime is 2105834173. The reversal of 2105834172 is 2714385012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2105834173) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 313198 + ... + 319850.

It is an arithmetic number, because the mean of its divisors is an integer number (110312230).

Almost surely, 22105834172 is an apocalyptic number.

It is an amenable number.

2105834172 is an abundant number, since it is smaller than the sum of its proper divisors (3189152868).

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

2105834172 is a wasteful number, since it uses less digits than its factorization.

2105834172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8702 (or 8700 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 33.

The square root of 2105834172 is about 45889.3688341864. The cubic root of 2105834172 is about 1281.7639603954.

The spelling of 2105834172 in words is "two billion, one hundred five million, eight hundred thirty-four thousand, one hundred seventy-two".

Divisors: 1 2 3 4 6 12 13 26 39 52 78 156 2029 4058 6087 6653 8116 12174 13306 19959 24348 26377 26612 39918 52754 79131 79836 86489 105508 158262 172978 259467 316524 345956 518934 1037868 13498937 26997874 40496811 53995748 80993622 161987244 175486181 350972362 526458543 701944724 1052917086 2105834172