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60813309013 = 111615448733
BaseRepresentation
bin111000101000110000…
…010111010001010101
312210222011222011222021
4320220300113101111
51444021201342023
643534240133141
74252003412002
oct705060272125
9183864864867
1060813309013
1123877589176
12b9523071b1
1359720bcb22
142d2c8c48a9
1518add5835d
hexe28c17455

60813309013 has 4 divisors (see below), whose sum is σ = 60818768908. Its totient is φ = 60807849120.

The previous prime is 60813308993. The next prime is 60813309019. The reversal of 60813309013 is 31090331806.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2615606449 + 58197702564 = 51143^2 + 241242^2 .

It is a cyclic number.

It is not a de Polignac number, because 60813309013 - 233 = 52223374421 is a prime.

It is a super-3 number, since 3×608133090133 (a number of 33 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 60813309013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (60813309019) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2713206 + ... + 2735527.

It is an arithmetic number, because the mean of its divisors is an integer number (15204692227).

Almost surely, 260813309013 is an apocalyptic number.

It is an amenable number.

60813309013 is a deficient number, since it is larger than the sum of its proper divisors (5459895).

60813309013 is a wasteful number, since it uses less digits than its factorization.

60813309013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5459894.

The product of its (nonzero) digits is 11664, while the sum is 34.

The spelling of 60813309013 in words is "sixty billion, eight hundred thirteen million, three hundred nine thousand, thirteen".

Divisors: 1 11161 5448733 60813309013