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317393470 = 25103308149
BaseRepresentation
bin10010111010110…
…000101000111110
3211010020020222201
4102322300220332
51122223042340
651254502114
710602541252
oct2272605076
9733206881
10317393470
11153184459
128a36493a
13509aa9b4
1430220262
151cce779a
hex12eb0a3e

317393470 has 16 divisors (see below), whose sum is σ = 576856800. Its totient is φ = 125724384.

The previous prime is 317393459. The next prime is 317393471. The reversal of 317393470 is 74393713.

It is a super-2 number, since 2×3173934702 = 201477229597281800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (317393471) 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, 153045 + ... + 155104.

It is an arithmetic number, because the mean of its divisors is an integer number (36053550).

Almost surely, 2317393470 is an apocalyptic number.

317393470 is a deficient number, since it is larger than the sum of its proper divisors (259463330).

317393470 is a wasteful number, since it uses less digits than its factorization.

317393470 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 308259.

The product of its (nonzero) digits is 47628, while the sum is 37.

The square root of 317393470 is about 17815.5401265300. The cubic root of 317393470 is about 682.1281868765.

The spelling of 317393470 in words is "three hundred seventeen million, three hundred ninety-three thousand, four hundred seventy".

Divisors: 1 2 5 10 103 206 515 1030 308149 616298 1540745 3081490 31739347 63478694 158696735 317393470