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531095317 = 17311007771
BaseRepresentation
bin11111101001111…
…101111100010101
31101000100102210221
4133221331330111
52041430022232
6124411114341
716106143564
oct3751757425
91330312727
10531095317
11252875855
12129a429b1
13860517ac
145076bbdb
153195b897
hex1fa7df15

531095317 has 8 divisors (see below), whose sum is σ = 580476672. Its totient is φ = 483729600.

The previous prime is 531095293. The next prime is 531095321. The reversal of 531095317 is 713590135.

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-531095317 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (531095377) 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, 503359 + ... + 504412.

It is an arithmetic number, because the mean of its divisors is an integer number (72559584).

Almost surely, 2531095317 is an apocalyptic number.

It is an amenable number.

531095317 is a deficient number, since it is larger than the sum of its proper divisors (49381355).

531095317 is a wasteful number, since it uses less digits than its factorization.

531095317 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1007819.

The product of its (nonzero) digits is 14175, while the sum is 34.

The square root of 531095317 is about 23045.5053535391. The cubic root of 531095317 is about 809.8243367482.

The spelling of 531095317 in words is "five hundred thirty-one million, ninety-five thousand, three hundred seventeen".

Divisors: 1 17 31 527 1007771 17132107 31240901 531095317