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2031220002213 = 32225691111357
BaseRepresentation
bin11101100011101110001…
…001011000110110100101
321012011221012210021202100
4131203232021120312211
5231234414310032323
64153043554002313
7266515345100463
oct35435611306645
97164835707670
102031220002213
11713487812606
122897b7576399
1311970a60506c
1470450d53833
1537c83c93943
hex1d8ee258da5

2031220002213 has 6 divisors (see below), whose sum is σ = 2933984447654. Its totient is φ = 1354146668136.

The previous prime is 2031220002143. The next prime is 2031220002269. The reversal of 2031220002213 is 3122000221302.

It can be written as a sum of positive squares in only one way, i.e., 1537716562209 + 493503440004 = 1240047^2 + 702498^2 .

It is not a de Polignac number, because 2031220002213 - 221 = 2031217905061 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 (2031220002283) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 112845555670 + ... + 112845555687.

Almost surely, 22031220002213 is an apocalyptic number.

It is an amenable number.

2031220002213 is a deficient number, since it is larger than the sum of its proper divisors (902764445441).

2031220002213 is a wasteful number, since it uses less digits than its factorization.

2031220002213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 225691111363 (or 225691111360 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 2031220002213 its reverse (3122000221302), we get a palindrome (5153220223515).

The spelling of 2031220002213 in words is "two trillion, thirty-one billion, two hundred twenty million, two thousand, two hundred thirteen".

Divisors: 1 3 9 225691111357 677073334071 2031220002213