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317494397 = 11178272053
BaseRepresentation
bin10010111011001…
…001010001111101
3211010102101102202
4102323021101331
51122234310042
651301001245
710603441433
oct2273112175
9733371382
10317494397
11153243270
128a3b3225
1350a1490c
1430248d53
151cd17632
hex12ec947d

317494397 has 16 divisors (see below), whose sum is σ = 367353792. Its totient is φ = 271192320.

The previous prime is 317494393. The next prime is 317494403. The reversal of 317494397 is 793494713.

It is a cyclic number.

It is not a de Polignac number, because 317494397 - 22 = 317494393 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 (317494393) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 153623 + ... + 155675.

It is an arithmetic number, because the mean of its divisors is an integer number (22959612).

Almost surely, 2317494397 is an apocalyptic number.

It is an amenable number.

317494397 is a deficient number, since it is larger than the sum of its proper divisors (49859395).

317494397 is a wasteful number, since it uses less digits than its factorization.

317494397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2908.

The product of its digits is 571536, while the sum is 47.

The square root of 317494397 is about 17818.3724565405. The cubic root of 317494397 is about 682.2004818479.

The spelling of 317494397 in words is "three hundred seventeen million, four hundred ninety-four thousand, three hundred ninety-seven".

Divisors: 1 11 17 187 827 2053 9097 14059 22583 34901 154649 383911 1697831 18676141 28863127 317494397