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3130323211220 = 225156516160561
BaseRepresentation
bin101101100011010101110…
…011011001001111010100
3102002020220121101100111212
4231203111303121033110
5402241400220224340
610354014534120552
7442105220163152
oct55432563311724
912066817340455
103130323211220
11aa7620933217
12426816ab0158
1319925a66b47a
14ab7192983d2
1556660b4da65
hex2d8d5cd93d4

3130323211220 has 12 divisors (see below), whose sum is σ = 6573678743604. Its totient is φ = 1252129284480.

The previous prime is 3130323211219. The next prime is 3130323211229. The reversal of 3130323211220 is 221123230313.

It can be written as a sum of positive squares in 2 ways, for example, as 2413635673744 + 716687537476 = 1553588^2 + 846574^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3130323211229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 78258080261 + ... + 78258080300.

It is an arithmetic number, because the mean of its divisors is an integer number (547806561967).

Almost surely, 23130323211220 is an apocalyptic number.

It is an amenable number.

3130323211220 is an abundant number, since it is smaller than the sum of its proper divisors (3443355532384).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3130323211220 is a wasteful number, since it uses less digits than its factorization.

3130323211220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156516160570 (or 156516160568 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 3130323211220 its reverse (221123230313), we get a palindrome (3351446441533).

The spelling of 3130323211220 in words is "three trillion, one hundred thirty billion, three hundred twenty-three million, two hundred eleven thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 156516160561 313032321122 626064642244 782580802805 1565161605610 3130323211220