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2105275 = 5284211
BaseRepresentation
bin1000000001111110111011
310221221220011
420001332323
51014332100
6113042351
723615554
oct10017673
93857804
102105275
1112087a7
128563b7
13589333
143cb32b
152b8bba
hex201fbb

2105275 has 6 divisors (see below), whose sum is σ = 2610572. Its totient is φ = 1684200.

The previous prime is 2105273. The next prime is 2105287. The reversal of 2105275 is 5725012.

It is not a de Polignac number, because 2105275 - 21 = 2105273 is a prime.

It is a Duffinian number.

2105275 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (2105273) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 42081 + ... + 42130.

22105275 is an apocalyptic number.

2105275 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

2105275 is a deficient number, since it is larger than the sum of its proper divisors (505297).

2105275 is an equidigital number, since it uses as much as digits as its factorization.

2105275 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84221 (or 84216 counting only the distinct ones).

The product of its (nonzero) digits is 700, while the sum is 22.

The square root of 2105275 is about 1450.9565810182. The cubic root of 2105275 is about 128.1650499425.

It can be divided in two parts, 2105 and 275, that multiplied together give a palindrome (578875).

The spelling of 2105275 in words is "two million, one hundred five thousand, two hundred seventy-five".

Divisors: 1 5 25 84211 421055 2105275