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52023153540 = 22354320164013
BaseRepresentation
bin110000011100110100…
…100101001110000100
311222021120202000112110
4300130310211032010
51323020411403130
635522112421020
73521116336401
oct603464451604
9158246660473
1052023153540
1120076794276
12a0ba547770
134ba0c629b7
1427372d52a8
1515472ccab0
hexc1cd25384

52023153540 has 48 divisors (see below), whose sum is σ = 149052391488. Its totient is φ = 13550216064.

The previous prime is 52023153493. The next prime is 52023153541. The reversal of 52023153540 is 4535132025.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 52023153498 and 52023153507.

It is not an unprimeable number, because it can be changed into a prime (52023153541) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10079427 + ... + 10084586.

It is an arithmetic number, because the mean of its divisors is an integer number (3105258156).

Almost surely, 252023153540 is an apocalyptic number.

It is an amenable number.

52023153540 is an abundant number, since it is smaller than the sum of its proper divisors (97029237948).

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

52023153540 is a wasteful number, since it uses less digits than its factorization.

52023153540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20164068 (or 20164066 counting only the distinct ones).

The product of its (nonzero) digits is 18000, while the sum is 30.

Adding to 52023153540 its reverse (4535132025), we get a palindrome (56558285565).

The spelling of 52023153540 in words is "fifty-two billion, twenty-three million, one hundred fifty-three thousand, five hundred forty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 43 60 86 129 172 215 258 430 516 645 860 1290 2580 20164013 40328026 60492039 80656052 100820065 120984078 201640130 241968156 302460195 403280260 604920390 867052559 1209840780 1734105118 2601157677 3468210236 4335262795 5202315354 8670525590 10404630708 13005788385 17341051180 26011576770 52023153540