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7142317 = 71378487
BaseRepresentation
bin11011001111101110101101
3111102212102021
4123033232231
53312023232
6413030141
7114465040
oct33175655
914385367
107142317
114039146
122485351
131630c30
14d3cc57
15961397
hex6cfbad

7142317 has 8 divisors (see below), whose sum is σ = 8790656. Its totient is φ = 5650992.

The previous prime is 7142299. The next prime is 7142321. The reversal of 7142317 is 7132417.

It is a happy number.

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 7142317 - 27 = 7142189 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 7142291 and 7142300.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7142117) 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, 39153 + ... + 39334.

It is an arithmetic number, because the mean of its divisors is an integer number (1098832).

Almost surely, 27142317 is an apocalyptic number.

It is an amenable number.

7142317 is a deficient number, since it is larger than the sum of its proper divisors (1648339).

7142317 is a wasteful number, since it uses less digits than its factorization.

7142317 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78507.

The product of its digits is 1176, while the sum is 25.

The square root of 7142317 is about 2672.5113657382. The cubic root of 7142317 is about 192.5808239900.

The spelling of 7142317 in words is "seven million, one hundred forty-two thousand, three hundred seventeen".

Divisors: 1 7 13 91 78487 549409 1020331 7142317