Search a number
-
+
7670681065 = 51534136213
BaseRepresentation
bin1110010010011010…
…10100110111101001
3201210120201222020201
413021031110313221
5111202143243230
63305053152201
7361041466435
oct71115246751
921716658221
107670681065
113286999243
1215a0a8b661
1395324b348
1452aa619c5
152ed6495ca
hex1c9354de9

7670681065 has 4 divisors (see below), whose sum is σ = 9204817284. Its totient is φ = 6136544848.

The previous prime is 7670681063. The next prime is 7670681099. The reversal of 7670681065 is 5601860767.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5601860767 = 18130949507.

It can be written as a sum of positive squares in 2 ways, for example, as 3800845801 + 3869835264 = 61651^2 + 62208^2 .

It is a cyclic number.

It is not a de Polignac number, because 7670681065 - 21 = 7670681063 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7670681063) 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, 767068102 + ... + 767068111.

It is an arithmetic number, because the mean of its divisors is an integer number (2301204321).

Almost surely, 27670681065 is an apocalyptic number.

It is an amenable number.

7670681065 is a deficient number, since it is larger than the sum of its proper divisors (1534136219).

7670681065 is a wasteful number, since it uses less digits than its factorization.

7670681065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1534136218.

The product of its (nonzero) digits is 423360, while the sum is 46.

The square root of 7670681065 is about 87582.4244069551. The cubic root of 7670681065 is about 1972.1713340493.

The spelling of 7670681065 in words is "seven billion, six hundred seventy million, six hundred eighty-one thousand, sixty-five".

Divisors: 1 5 1534136213 7670681065