Search a number
-
+
6980869 = 7997267
BaseRepresentation
bin11010101000010100000101
3111010122221201
4122220110011
53241341434
6405342501
7113223250
oct32502405
914118851
106980869
113a38915
122407a31
1315a55bc
14cda097
1592d614
hex6a8505

6980869 has 4 divisors (see below), whose sum is σ = 7978144. Its totient is φ = 5983596.

The previous prime is 6980849. The next prime is 6980899. The reversal of 6980869 is 9680896.

It is a happy number.

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 6980869 - 29 = 6980357 is a prime.

It is a super-2 number, since 2×69808692 = 97465063990322, which contains 22 as substring.

6980869 is a strobogrammatic number because it is the same when read upside-down.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6980849) 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, 498627 + ... + 498640.

It is an arithmetic number, because the mean of its divisors is an integer number (1994536).

Almost surely, 26980869 is an apocalyptic number.

It is an amenable number.

6980869 is a deficient number, since it is larger than the sum of its proper divisors (997275).

6980869 is an equidigital number, since it uses as much as digits as its factorization.

6980869 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 997274.

The product of its (nonzero) digits is 186624, while the sum is 46.

The square root of 6980869 is about 2642.1334182815. The cubic root of 6980869 is about 191.1186912468.

The spelling of 6980869 in words is "six million, nine hundred eighty thousand, eight hundred sixty-nine".

Divisors: 1 7 997267 6980869