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2055105 = 335131171
BaseRepresentation
bin111110101101111000001
310212102002000
413311233001
51011230410
6112014213
723316363
oct7655701
93772060
102055105
111184038
12831369
1356c550
143b6d33
152a8dc0
hex1f5bc1

2055105 has 32 divisors (see below), whose sum is σ = 3937920. Its totient is φ = 1010880.

The previous prime is 2055103. The next prime is 2055107. The reversal of 2055105 is 5015502.

It is an interprime number because it is at equal distance from previous prime (2055103) and next prime (2055107).

It is not a de Polignac number, because 2055105 - 21 = 2055103 is a prime.

It is a super-2 number, since 2×20551052 = 8446913122050, which contains 22 as substring.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (2055101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1170 + ... + 2340.

It is an arithmetic number, because the mean of its divisors is an integer number (123060).

22055105 is an apocalyptic number.

It is an amenable number.

2055105 is a deficient number, since it is larger than the sum of its proper divisors (1882815).

2055105 is a wasteful number, since it uses less digits than its factorization.

2055105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1198 (or 1192 counting only the distinct ones).

The product of its (nonzero) digits is 250, while the sum is 18.

The square root of 2055105 is about 1433.5637411709. The cubic root of 2055105 is about 127.1387699253.

The spelling of 2055105 in words is "two million, fifty-five thousand, one hundred five".

Divisors: 1 3 5 9 13 15 27 39 45 65 117 135 195 351 585 1171 1755 3513 5855 10539 15223 17565 31617 45669 52695 76115 137007 158085 228345 411021 685035 2055105