Search a number
-
+
67048009 = 73129967
BaseRepresentation
bin1111111111000…
…1001001001001
311200011101120121
43333301021021
5114131014014
610353023241
71442620150
oct377611111
9150141517
1067048009
1134935186
121a554b21
1310b76ca2
148c94597
155d46124
hex3ff1249

67048009 has 12 divisors (see below), whose sum is σ = 79185792. Its totient is φ = 55610280.

The previous prime is 67047989. The next prime is 67048073. The reversal of 67048009 is 90084076.

It is a de Polignac number, because none of the positive numbers 2k-67048009 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67048099) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1744 + ... + 11710.

It is an arithmetic number, because the mean of its divisors is an integer number (6598816).

Almost surely, 267048009 is an apocalyptic number.

It is an amenable number.

67048009 is a deficient number, since it is larger than the sum of its proper divisors (12137783).

67048009 is an equidigital number, since it uses as much as digits as its factorization.

67048009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10036 (or 10005 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 34.

The square root of 67048009 is about 8188.2848631444. The cubic root of 67048009 is about 406.2517972623.

The spelling of 67048009 in words is "sixty-seven million, forty-eight thousand, nine".

Divisors: 1 7 31 217 961 6727 9967 69769 308977 2162839 9578287 67048009