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4915350609481 = 13219928572
BaseRepresentation
bin100011110000111000110…
…1110100001111001001001
3122101220101020100112122101
41013201301232201321021
51121013114224000411
614242025250153401
71015056653546134
oct107416156417111
918356336315571
104915350609481
111625652304584
12674764b82861
1329869193b300
1412dc9333521b
1587cd5ea58c1
hex47871ba1e49

4915350609481 has 27 divisors (see below), whose sum is σ = 5355669564981. Its totient is φ = 4509178749504.

The previous prime is 4915350609473. The next prime is 4915350609493. The reversal of 4915350609481 is 1849060535194.

The square root of 4915350609481 is 2217059.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 71213725881 + 4844136883600 = 266859^2 + 2200940^2 .

It is not a de Polignac number, because 4915350609481 - 23 = 4915350609473 is a prime.

It is a super-2 number, since 2×49153506094812 (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4915350609401) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 5735531205 + ... + 5735532061.

Almost surely, 24915350609481 is an apocalyptic number.

4915350609481 is the 2217059-th square number.

4915350609481 is the 1108530-th centered octagonal number.

It is an amenable number.

4915350609481 is a deficient number, since it is larger than the sum of its proper divisors (440318955500).

4915350609481 is an frugal number, since it uses more digits than its factorization.

4915350609481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2138 (or 1069 counting only the distinct ones).

The product of its (nonzero) digits is 4665600, while the sum is 55.

The spelling of 4915350609481 in words is "four trillion, nine hundred fifteen billion, three hundred fifty million, six hundred nine thousand, four hundred eighty-one".

Divisors: 1 13 169 199 857 2587 11141 33631 39601 144833 170543 514813 734449 2217059 6692569 9547837 28821767 33938057 124121881 146155351 441194741 1900019563 5735531633 24700254319 29084914849 378103893037 4915350609481