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53423115413 = 172181310273
BaseRepresentation
bin110001110000010001…
…000000110010010101
312002220011000110012012
4301300101000302111
51333402304143123
640313042434005
73600605663033
oct616021006225
9162804013165
1053423115413
1120724a57358
12a42b362905
135064cc9cc5
14282b1d7553
1515ca166378
hexc70440c95

53423115413 has 4 divisors (see below), whose sum is σ = 53423597868. Its totient is φ = 53422632960.

The previous prime is 53423115391. The next prime is 53423115433. The reversal of 53423115413 is 31451132435.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 43795188529 + 9627926884 = 209273^2 + 98122^2 .

It is a cyclic number.

It is not a de Polignac number, because 53423115413 - 210 = 53423114389 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 53423115413.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53423115433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17045 + ... + 327317.

It is an arithmetic number, because the mean of its divisors is an integer number (13355899467).

Almost surely, 253423115413 is an apocalyptic number.

It is an amenable number.

53423115413 is a deficient number, since it is larger than the sum of its proper divisors (482455).

53423115413 is a wasteful number, since it uses less digits than its factorization.

53423115413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 482454.

The product of its digits is 21600, while the sum is 32.

Adding to 53423115413 its reverse (31451132435), we get a palindrome (84874247848).

The spelling of 53423115413 in words is "fifty-three billion, four hundred twenty-three million, one hundred fifteen thousand, four hundred thirteen".

Divisors: 1 172181 310273 53423115413