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53161154613231 = 3722764991307927
BaseRepresentation
bin11000001011001100010111…
…01111001000111111101111
320222020011020021021010011220
430011212023233020333233
523431443021040110411
6305021521451314423
714124523653324600
oct1405461357107757
9228204207233156
1053161154613231
1115a36578963a35
125b66ba314ba13
1323880c9782592
14d1b0294cbda7
15622c9c3b3b06
hex30598bbc8fef

53161154613231 has 24 divisors (see below), whose sum is σ = 82454396976000. Its totient is φ = 30377669544432.

The previous prime is 53161154613227. The next prime is 53161154613239. The reversal of 53161154613231 is 13231645116135.

It is not a de Polignac number, because 53161154613231 - 22 = 53161154613227 is a prime.

It is a super-2 number, since 2×531611546132312 (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53161154613239) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 39991390 + ... + 41299316.

It is an arithmetic number, because the mean of its divisors is an integer number (3435599874000).

Almost surely, 253161154613231 is an apocalyptic number.

53161154613231 is a deficient number, since it is larger than the sum of its proper divisors (29293242362769).

53161154613231 is a wasteful number, since it uses less digits than its factorization.

53161154613231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1584443 (or 1584436 counting only the distinct ones).

The product of its digits is 194400, while the sum is 42.

Adding to 53161154613231 its reverse (13231645116135), we get a palindrome (66392799729366).

The spelling of 53161154613231 in words is "fifty-three trillion, one hundred sixty-one billion, one hundred fifty-four million, six hundred thirteen thousand, two hundred thirty-one".

Divisors: 1 3 7 21 49 147 276499 829497 1307927 1935493 3923781 5806479 9155489 13548451 27466467 40645353 64088423 192265269 361640507573 1084921522719 2531483553011 7594450659033 17720384871077 53161154613231