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2152871 = 71916187
BaseRepresentation
bin1000001101100110100111
311001101011222
420031212213
51022342441
6114050555
724204410
oct10154647
94041158
102152871
111240536
12879a5b
135a4bb6
14400807
152c7d4b
hex20d9a7

2152871 has 8 divisors (see below), whose sum is σ = 2590080. Its totient is φ = 1748088.

The previous prime is 2152867. The next prime is 2152879. The reversal of 2152871 is 1782512.

2152871 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 2152871 - 22 = 2152867 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2152871.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2152879) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7961 + ... + 8226.

It is an arithmetic number, because the mean of its divisors is an integer number (323760).

22152871 is an apocalyptic number.

2152871 is a deficient number, since it is larger than the sum of its proper divisors (437209).

2152871 is a wasteful number, since it uses less digits than its factorization.

2152871 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16213.

The product of its digits is 1120, while the sum is 26.

The square root of 2152871 is about 1467.2665061263. The cubic root of 2152871 is about 129.1237120205.

The spelling of 2152871 in words is "two million, one hundred fifty-two thousand, eight hundred seventy-one".

Divisors: 1 7 19 133 16187 113309 307553 2152871