Search a number
-
+
16513047889 = 139071400479
BaseRepresentation
bin11110110000100000…
…10001110101010001
31120121211012202012021
433120100101311101
5232304320013024
611330323531441
71123131406522
oct173020216521
946554182167
1016513047889
117004204318
12324a229b81
131732159270
14b29162849
15669a89de4
hex3d8411d51

16513047889 has 8 divisors (see below), whose sum is σ = 17802901760. Its totient is φ = 15225996816.

The previous prime is 16513047857. The next prime is 16513047949. The reversal of 16513047889 is 98874031561.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 16513047889 - 25 = 16513047857 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16513047289) 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, 688449 + ... + 712030.

It is an arithmetic number, because the mean of its divisors is an integer number (2225362720).

Almost surely, 216513047889 is an apocalyptic number.

It is an amenable number.

16513047889 is a deficient number, since it is larger than the sum of its proper divisors (1289853871).

16513047889 is a wasteful number, since it uses less digits than its factorization.

16513047889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1401399.

The product of its (nonzero) digits is 1451520, while the sum is 52.

The spelling of 16513047889 in words is "sixteen billion, five hundred thirteen million, forty-seven thousand, eight hundred eighty-nine".

Divisors: 1 13 907 11791 1400479 18206227 1270234453 16513047889