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40320310120213 = 256189157385017
BaseRepresentation
bin10010010101011110011011…
…10000110000111100010101
312021202120202201221001021011
421022233031300300330111
520241101443342321323
6221430521133452221
711331021605122504
oct1112571560607425
9167676681831234
1040320310120213
1111935824a07292
12463241a341071
13196625c103286
149d5728b8c83b
1549dc554a420d
hex24abcdc30f15

40320310120213 has 4 divisors (see below), whose sum is σ = 40320467761420. Its totient is φ = 40320152479008.

The previous prime is 40320310120159. The next prime is 40320310120219. The reversal of 40320310120213 is 31202101302304.

40320310120213 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 12775205874564 + 27545104245649 = 3574242^2 + 5248343^2 .

It is a cyclic number.

It is not a de Polignac number, because 40320310120213 - 245 = 5135938031381 is a prime.

It is a super-3 number, since 3×403203101202133 (a number of 42 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40320310120219) 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, 78436320 + ... + 78948697.

It is an arithmetic number, because the mean of its divisors is an integer number (10080116940355).

Almost surely, 240320310120213 is an apocalyptic number.

It is an amenable number.

40320310120213 is a deficient number, since it is larger than the sum of its proper divisors (157641207).

40320310120213 is a wasteful number, since it uses less digits than its factorization.

40320310120213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157641206.

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 40320310120213 its reverse (31202101302304), we get a palindrome (71522411422517).

The spelling of 40320310120213 in words is "forty trillion, three hundred twenty billion, three hundred ten million, one hundred twenty thousand, two hundred thirteen".

Divisors: 1 256189 157385017 40320310120213