Search a number
-
+
60728849 = 131463579
BaseRepresentation
bin1110011110101…
…0011000010001
311020021100022122
43213222120101
5111021310344
610005344025
71335121016
oct347523021
9136240278
1060728849
1131309535
1218408015
13c77393c
1480cb70d
1554e8aee
hex39ea611

60728849 has 4 divisors (see below), whose sum is σ = 61192560. Its totient is φ = 60265140.

The previous prime is 60728819. The next prime is 60728851. The reversal of 60728849 is 94882706.

60728849 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 60728849 - 28 = 60728593 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (60728819) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 231659 + ... + 231920.

It is an arithmetic number, because the mean of its divisors is an integer number (15298140).

Almost surely, 260728849 is an apocalyptic number.

It is an amenable number.

60728849 is a deficient number, since it is larger than the sum of its proper divisors (463711).

60728849 is a wasteful number, since it uses less digits than its factorization.

60728849 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 463710.

The product of its (nonzero) digits is 193536, while the sum is 44.

The square root of 60728849 is about 7792.8716786561. The cubic root of 60728849 is about 393.0655813655.

The spelling of 60728849 in words is "sixty million, seven hundred twenty-eight thousand, eight hundred forty-nine".

Divisors: 1 131 463579 60728849