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7142065 = 57204059
BaseRepresentation
bin11011001111101010110001
3111102212001221
4123033222301
53312021230
6413025041
7114464230
oct33175261
914385057
107142065
114038a37
122485181
131630a98
14d3cb17
1596127a
hex6cfab1

7142065 has 8 divisors (see below), whose sum is σ = 9794880. Its totient is φ = 4897392.

The previous prime is 7142053. The next prime is 7142111. The reversal of 7142065 is 5602417.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-7142065 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 101995 + ... + 102064.

It is an arithmetic number, because the mean of its divisors is an integer number (1224360).

Almost surely, 27142065 is an apocalyptic number.

It is an amenable number.

7142065 is a deficient number, since it is larger than the sum of its proper divisors (2652815).

7142065 is a wasteful number, since it uses less digits than its factorization.

7142065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 204071.

The product of its (nonzero) digits is 1680, while the sum is 25.

The square root of 7142065 is about 2672.4642186566. The cubic root of 7142065 is about 192.5785590416.

The spelling of 7142065 in words is "seven million, one hundred forty-two thousand, sixty-five".

Divisors: 1 5 7 35 204059 1020295 1428413 7142065