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52110431321620 = 22579719132005903
BaseRepresentation
bin10111101100100111001111…
…01111110111111000010100
320211111201010120000111111211
423312103213233313320110
523312234130404242440
6302455111320511204
713655566031603110
oct1366234757677024
9224451116014454
1052110431321620
1115670a00a68331
125a1742601b504
13230ccb9941229
14cc2230676740
156057a2a33eea
hex2f64e7bf7e14

52110431321620 has 96 divisors (see below), whose sum is σ = 126420478829568. Its totient is φ = 17672991547392.

The previous prime is 52110431321581. The next prime is 52110431321639. The reversal of 52110431321620 is 2612313401125.

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 24975589 + ... + 26981491.

It is an arithmetic number, because the mean of its divisors is an integer number (1316879987808).

Almost surely, 252110431321620 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 52110431321620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (63210239414784).

52110431321620 is an abundant number, since it is smaller than the sum of its proper divisors (74310047507948).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

52110431321620 is a wasteful number, since it uses less digits than its factorization.

52110431321620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2007929 (or 2007927 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 31.

Adding to 52110431321620 its reverse (2612313401125), we get a palindrome (54722744722745).

The spelling of 52110431321620 in words is "fifty-two trillion, one hundred ten billion, four hundred thirty-one million, three hundred twenty-one thousand, six hundred twenty".

Divisors: 1 2 4 5 7 10 14 20 28 35 70 97 140 194 388 485 679 970 1358 1913 1940 2716 3395 3826 6790 7652 9565 13391 13580 19130 26782 38260 53564 66955 133910 185561 267820 371122 742244 927805 1298927 1855610 2005903 2597854 3711220 4011806 5195708 6494635 8023612 10029515 12989270 14041321 20059030 25978540 28082642 40118060 56165284 70206605 140413210 194572591 280826420 389145182 778290364 972862955 1362008137 1945725910 2724016274 3837292439 3891451820 5448032548 6810040685 7674584878 13620081370 15349169756 19186462195 26861047073 27240162740 38372924390 53722094146 76745848780 107444188292 134305235365 268610470730 372217366583 537220941460 744434733166 1488869466332 1861086832915 2605521566081 3722173665830 5211043132162 7444347331660 10422086264324 13027607830405 26055215660810 52110431321620