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3012130130221 = 17989167442889
BaseRepresentation
bin101011110101010000111…
…100100100100100101101
3101122221211112020201220101
4223311100330210210231
5343322320303131341
610223430430151101
7430422251443162
oct53652074444455
911587745221811
103012130130221
11a61489a29093
12407930352491
1318b072927554
14a5b05d0a069
155354461b831
hex2bd50f2492d

3012130130221 has 4 divisors (see below), whose sum is σ = 3012297591100. Its totient is φ = 3011962669344.

The previous prime is 3012130130209. The next prime is 3012130130239. The reversal of 3012130130221 is 1220310312103.

3012130130221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2026053326025 + 986076804196 = 1423395^2 + 993014^2 .

It is a cyclic number.

It is not a de Polignac number, because 3012130130221 - 25 = 3012130130189 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3012130130621) 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, 83703456 + ... + 83739433.

It is an arithmetic number, because the mean of its divisors is an integer number (753074397775).

Almost surely, 23012130130221 is an apocalyptic number.

It is an amenable number.

3012130130221 is a deficient number, since it is larger than the sum of its proper divisors (167460879).

3012130130221 is a wasteful number, since it uses less digits than its factorization.

3012130130221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 167460878.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 3012130130221 its reverse (1220310312103), we get a palindrome (4232440442324).

The spelling of 3012130130221 in words is "three trillion, twelve billion, one hundred thirty million, one hundred thirty thousand, two hundred twenty-one".

Divisors: 1 17989 167442889 3012130130221