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7131317 = 113223283
BaseRepresentation
bin11011001101000010110101
3111102022022212
4123031002311
53311200232
6412503205
7114421004
oct33150265
914368285
107131317
114030956
12247ab05
131628c1b
14d38c3b
1595ceb2
hex6cd0b5

7131317 has 8 divisors (see below), whose sum is σ = 7252224. Its totient is φ = 7011648.

The previous prime is 7131301. The next prime is 7131323.

7131317 is nontrivially palindromic in base 10.

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 7131317 - 24 = 7131301 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 7131292 and 7131301.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7131337) 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, 25058 + ... + 25340.

It is an arithmetic number, because the mean of its divisors is an integer number (906528).

Almost surely, 27131317 is an apocalyptic number.

It is an amenable number.

7131317 is a deficient number, since it is larger than the sum of its proper divisors (120907).

7131317 is a wasteful number, since it uses less digits than its factorization.

7131317 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 619.

The product of its digits is 441, while the sum is 23.

The square root of 7131317 is about 2670.4525833648. The cubic root of 7131317 is about 192.4819075592.

The spelling of 7131317 in words is "seven million, one hundred thirty-one thousand, three hundred seventeen".

Divisors: 1 113 223 283 25199 31979 63109 7131317