Search a number
-
+
2130023 = 7973137
BaseRepresentation
bin1000001000000001100111
311000012211202
420020001213
51021130043
6113353115
724050660
oct10100147
94005752
102130023
111225355
1286879b
1359768c
143d6367
152c11b8
hex208067

2130023 has 8 divisors (see below), whose sum is σ = 2460192. Its totient is φ = 1806336.

The previous prime is 2130013. The next prime is 2130031. The reversal of 2130023 is 3200312.

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

It is not a de Polignac number, because 2130023 - 212 = 2125927 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2129986 and 2130013.

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 pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 890 + ... + 2247.

It is an arithmetic number, because the mean of its divisors is an integer number (307524).

22130023 is an apocalyptic number.

2130023 is a deficient number, since it is larger than the sum of its proper divisors (330169).

2130023 is an equidigital number, since it uses as much as digits as its factorization.

2130023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3241.

The product of its (nonzero) digits is 36, while the sum is 11.

The square root of 2130023 is about 1459.4598315815. The cubic root of 2130023 is about 128.6652982336.

Adding to 2130023 its reverse (3200312), we get a palindrome (5330335).

The spelling of 2130023 in words is "two million, one hundred thirty thousand, twenty-three".

Divisors: 1 7 97 679 3137 21959 304289 2130023