Search a number
-
+
52115441440 = 255443735263
BaseRepresentation
bin110000100010010100…
…101000011100100000
311222112000101201201211
4300202110220130200
51323213023111230
635535210435504
73523316641336
oct604224503440
9158460351654
1052115441440
1120113898567
12a125432b94
134bb710611a
142745679b56
15155045c42a
hexc22528720

52115441440 has 48 divisors (see below), whose sum is σ = 123400827648. Its totient is φ = 20799091456.

The previous prime is 52115441431. The next prime is 52115441447. The reversal of 52115441440 is 4414451125.

It is not an unprimeable number, because it can be changed into a prime (52115441447) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 296752 + ... + 438511.

It is an arithmetic number, because the mean of its divisors is an integer number (2570850576).

Almost surely, 252115441440 is an apocalyptic number.

It is an amenable number.

52115441440 is an abundant number, since it is smaller than the sum of its proper divisors (71285386208).

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

52115441440 is a wasteful number, since it uses less digits than its factorization.

52115441440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 735721 (or 735713 counting only the distinct ones).

The product of its (nonzero) digits is 12800, while the sum is 31.

Adding to 52115441440 its reverse (4414451125), we get a palindrome (56529892565).

The spelling of 52115441440 in words is "fifty-two billion, one hundred fifteen million, four hundred forty-one thousand, four hundred forty".

Divisors: 1 2 4 5 8 10 16 20 32 40 80 160 443 886 1772 2215 3544 4430 7088 8860 14176 17720 35440 70880 735263 1470526 2941052 3676315 5882104 7352630 11764208 14705260 23528416 29410520 58821040 117642080 325721509 651443018 1302886036 1628607545 2605772072 3257215090 5211544144 6514430180 10423088288 13028860360 26057720720 52115441440