Search a number
-
+
6947972 = 221736993
BaseRepresentation
bin11010100000010010000100
3111001222211022
4122200102010
53234313342
6404530312
7113025323
oct32402204
914058738
106947972
113a16129
1223b0998
131593635
14ccc0ba
159239d2
hex6a0484

6947972 has 6 divisors (see below), whose sum is σ = 12158958. Its totient is φ = 3473984.

The previous prime is 6947959. The next prime is 6948041. The reversal of 6947972 is 2797496.

It can be written as a sum of positive squares in only one way, i.e., 5837056 + 1110916 = 2416^2 + 1054^2 .

It is a d-powerful number, because it can be written as 66 + 9 + 47 + 74 + 97 + 74 + 221 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 868493 + ... + 868500.

It is an arithmetic number, because the mean of its divisors is an integer number (2026493).

Almost surely, 26947972 is an apocalyptic number.

It is an amenable number.

6947972 is a deficient number, since it is larger than the sum of its proper divisors (5210986).

6947972 is a wasteful number, since it uses less digits than its factorization.

6947972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1736997 (or 1736995 counting only the distinct ones).

The product of its digits is 190512, while the sum is 44.

The square root of 6947972 is about 2635.9006051063. The cubic root of 6947972 is about 190.8180059686.

The spelling of 6947972 in words is "six million, nine hundred forty-seven thousand, nine hundred seventy-two".

Divisors: 1 2 4 1736993 3473986 6947972