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2130015 = 35178353
BaseRepresentation
bin1000001000000001011111
311000012211110
420020001133
51021130030
6113353103
724050646
oct10100137
94005743
102130015
111225348
12868793
13597684
143d635d
152c11b0
hex20805f

2130015 has 16 divisors (see below), whose sum is σ = 3608928. Its totient is φ = 1069056.

The previous prime is 2130013. The next prime is 2130031. The reversal of 2130015 is 5100312.

It is not a de Polignac number, because 2130015 - 21 = 2130013 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2130013) 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, 3922 + ... + 4431.

It is an arithmetic number, because the mean of its divisors is an integer number (225558).

22130015 is an apocalyptic number.

2130015 is a deficient number, since it is larger than the sum of its proper divisors (1478913).

2130015 is a wasteful number, since it uses less digits than its factorization.

2130015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8378.

The product of its (nonzero) digits is 30, while the sum is 12.

The square root of 2130015 is about 1459.4570908389. The cubic root of 2130015 is about 128.6651371518.

Adding to 2130015 its reverse (5100312), we get a palindrome (7230327).

The spelling of 2130015 in words is "two million, one hundred thirty thousand, fifteen".

Divisors: 1 3 5 15 17 51 85 255 8353 25059 41765 125295 142001 426003 710005 2130015