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6972241 = 31224911
BaseRepresentation
bin11010100110001101010001
3111010020010011
4122212031101
53241102431
6405234521
7113156143
oct32461521
914106104
106972241
113a32391
122402a41
1315a16b3
14cd6c93
1592acb1
hex6a6351

6972241 has 4 divisors (see below), whose sum is σ = 7197184. Its totient is φ = 6747300.

The previous prime is 6972233. The next prime is 6972253. The reversal of 6972241 is 1422796.

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 6972241 - 23 = 6972233 is a prime.

It is a super-2 number, since 2×69722412 = 97224289124162, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (31), and also a Moran number because the ratio is a prime number: 224911 = 6972241 / (6 + 9 + 7 + 2 + 2 + 4 + 1).

It is the 2641-st Hogben number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6972281) by changing a digit.

It is a nontrivial repunit in base 2640.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 112425 + ... + 112486.

It is an arithmetic number, because the mean of its divisors is an integer number (1799296).

Almost surely, 26972241 is an apocalyptic number.

It is an amenable number.

6972241 is a deficient number, since it is larger than the sum of its proper divisors (224943).

6972241 is a wasteful number, since it uses less digits than its factorization.

6972241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 224942.

The product of its digits is 6048, while the sum is 31.

The square root of 6972241 is about 2640.5001420186. The cubic root of 6972241 is about 191.0399211165.

It can be divided in two parts, 697224 and 1, that added together give a square (697225 = 8352).

The spelling of 6972241 in words is "six million, nine hundred seventy-two thousand, two hundred forty-one".

Divisors: 1 31 224911 6972241