Search a number
-
+
7140715 = 51428143
BaseRepresentation
bin11011001111010101101011
3111102210012221
4123033111223
53312000330
6413014511
7114460261
oct33172553
914383187
107140715
114037a1a
122484437
13163029a
14d3c431
15960b7a
hex6cf56b

7140715 has 4 divisors (see below), whose sum is σ = 8568864. Its totient is φ = 5712568.

The previous prime is 7140701. The next prime is 7140733. The reversal of 7140715 is 5170417.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 7140715 - 213 = 7132523 is a prime.

It is a super-2 number, since 2×71407152 = 101979621422450, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 7140715.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 714067 + ... + 714076.

It is an arithmetic number, because the mean of its divisors is an integer number (2142216).

Almost surely, 27140715 is an apocalyptic number.

7140715 is a deficient number, since it is larger than the sum of its proper divisors (1428149).

7140715 is a wasteful number, since it uses less digits than its factorization.

7140715 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1428148.

The product of its (nonzero) digits is 980, while the sum is 25.

The square root of 7140715 is about 2672.2116308406. The cubic root of 7140715 is about 192.5664244822.

The spelling of 7140715 in words is "seven million, one hundred forty thousand, seven hundred fifteen".

Divisors: 1 5 1428143 7140715