[go: up one dir, main page]

Search a number
-
+
7142001 = 32380667
BaseRepresentation
bin11011001111101001110001
3111102211222120
4123033221301
53312021001
6413024453
7114464106
oct33175161
914384876
107142001
114038989
122485129
131630a49
14d3caad
15961236
hex6cfa71

7142001 has 4 divisors (see below), whose sum is σ = 9522672. Its totient is φ = 4761332.

The previous prime is 7141991. The next prime is 7142011. The reversal of 7142001 is 1002417.

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 an interprime number because it is at equal distance from previous prime (7141991) and next prime (7142011).

It is a cyclic number.

It is not a de Polignac number, because 7142001 - 25 = 7141969 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (7142011) 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, 1190331 + ... + 1190336.

It is an arithmetic number, because the mean of its divisors is an integer number (2380668).

Almost surely, 27142001 is an apocalyptic number.

It is an amenable number.

7142001 is a deficient number, since it is larger than the sum of its proper divisors (2380671).

7142001 is a wasteful number, since it uses less digits than its factorization.

7142001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2380670.

The product of its (nonzero) digits is 56, while the sum is 15.

The square root of 7142001 is about 2672.4522446622. The cubic root of 7142001 is about 192.5779838082.

Adding to 7142001 its reverse (1002417), we get a palindrome (8144418).

The spelling of 7142001 in words is "seven million, one hundred forty-two thousand, one".

Divisors: 1 3 2380667 7142001