Search a number
-
+
7280141 = 11976823
BaseRepresentation
bin11011110001011000001101
3111200212110212
4123301120031
53330431031
6420012205
7115610621
oct33613015
914625425
107280141
114122750
122531065
13167b89b
14d77181
1598c12b
hex6f160d

7280141 has 8 divisors (see below), whose sum is σ = 8025024. Its totient is φ = 6549120.

The previous prime is 7280137. The next prime is 7280149. The reversal of 7280141 is 1410827.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 7280141 - 22 = 7280137 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7280149) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2345 + ... + 4478.

It is an arithmetic number, because the mean of its divisors is an integer number (1003128).

Almost surely, 27280141 is an apocalyptic number.

It is an amenable number.

7280141 is a deficient number, since it is larger than the sum of its proper divisors (744883).

7280141 is a wasteful number, since it uses less digits than its factorization.

7280141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6931.

The product of its (nonzero) digits is 448, while the sum is 23.

The square root of 7280141 is about 2698.1736415583. The cubic root of 7280141 is about 193.8116729092.

Adding to 7280141 its reverse (1410827), we get a palindrome (8690968).

The spelling of 7280141 in words is "seven million, two hundred eighty thousand, one hundred forty-one".

Divisors: 1 11 97 1067 6823 75053 661831 7280141