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312203202222413 = 2131146505491423
BaseRepresentation
bin100011011111100100111100…
…0111101110101100101001101
31111221102100000221212010111002
41012333021320331311211031
5311410114124232104123
63024000100543110045
7122521636252054025
oct10677117075654515
91457370027763432
10312203202222413
11905286a8596627
122b0230a48a2325
131052883567cb18
145714a038dca85
1526161c5de0528
hex11bf278f7594d

312203202222413 has 4 divisors (see below), whose sum is σ = 312349707715968. Its totient is φ = 312056696728860.

The previous prime is 312203202222347. The next prime is 312203202222419. The reversal of 312203202222413 is 314222202302213.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 312203202222413 - 228 = 312202933786957 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312203202222419) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 73252743581 + ... + 73252747842.

It is an arithmetic number, because the mean of its divisors is an integer number (78087426928992).

Almost surely, 2312203202222413 is an apocalyptic number.

It is an amenable number.

312203202222413 is a deficient number, since it is larger than the sum of its proper divisors (146505493555).

312203202222413 is a wasteful number, since it uses less digits than its factorization.

312203202222413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146505493554.

The product of its (nonzero) digits is 13824, while the sum is 29.

Adding to 312203202222413 its reverse (314222202302213), we get a palindrome (626425404524626).

The spelling of 312203202222413 in words is "three hundred twelve trillion, two hundred three billion, two hundred two million, two hundred twenty-two thousand, four hundred thirteen".

Divisors: 1 2131 146505491423 312203202222413