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2130827 = 10212087
BaseRepresentation
bin1000001000001110001011
311000020221112
420020032023
51021141302
6113400535
724053216
oct10101613
94006845
102130827
111225a16
1286914b
13597b5a
143d677d
152c1552
hex20838b

2130827 has 4 divisors (see below), whose sum is σ = 2133936. Its totient is φ = 2127720.

The previous prime is 2130809. The next prime is 2130853. The reversal of 2130827 is 7280312.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-2130827 is a prime.

It is a d-powerful number, because it can be written as 27 + 1 + 36 + 0 + 85 + 221 + 72 .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2130857) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23 + ... + 2064.

It is an arithmetic number, because the mean of its divisors is an integer number (533484).

22130827 is an apocalyptic number.

2130827 is a deficient number, since it is larger than the sum of its proper divisors (3109).

2130827 is a wasteful number, since it uses less digits than its factorization.

2130827 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3108.

The product of its (nonzero) digits is 672, while the sum is 23.

The square root of 2130827 is about 1459.7352499683. The cubic root of 2130827 is about 128.6814848955.

The spelling of 2130827 in words is "two million, one hundred thirty thousand, eight hundred twenty-seven".

Divisors: 1 1021 2087 2130827