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3012120231 = 317106955249
BaseRepresentation
bin1011001110001001…
…0100111010100111
321202220211120011120
42303202110322213
522132100321411
61214520105023
7134433412431
oct26342247247
97686746146
103012120231
11130629956a
12700905173
13390069183
1420807d651
1512968a106
hexb3894ea7

3012120231 has 16 divisors (see below), whose sum is σ = 4256460000. Its totient is φ = 1888155648.

The previous prime is 3012120193. The next prime is 3012120247. The reversal of 3012120231 is 1320212103.

It is not a de Polignac number, because 3012120231 - 210 = 3012119207 is a prime.

It is a super-2 number, since 2×30121202312 = 18145736571998986722, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 3012120231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3012120031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26895 + ... + 82143.

It is an arithmetic number, because the mean of its divisors is an integer number (266028750).

Almost surely, 23012120231 is an apocalyptic number.

3012120231 is a deficient number, since it is larger than the sum of its proper divisors (1244339769).

3012120231 is a wasteful number, since it uses less digits than its factorization.

3012120231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56338.

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 3012120231 is about 54882.7862904208. The cubic root of 3012120231 is about 1444.1892269662.

Adding to 3012120231 its reverse (1320212103), we get a palindrome (4332332334).

The spelling of 3012120231 in words is "three billion, twelve million, one hundred twenty thousand, two hundred thirty-one".

Divisors: 1 3 17 51 1069 3207 18173 54519 55249 165747 939233 2817699 59061181 177183543 1004040077 3012120231