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317111047 = 11171695781
BaseRepresentation
bin10010111001101…
…011101100000111
3211002200220120121
4102321223230013
51122140023142
651244442411
710600254001
oct2271535407
9732626517
10317111047
11153001250
128a249407
135090c296
1430189371
151cc8dc67
hex12e6bb07

317111047 has 8 divisors (see below), whose sum is σ = 366288912. Its totient is φ = 271324800.

The previous prime is 317111009. The next prime is 317111057. The reversal of 317111047 is 740111713.

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-317111047 is a prime.

It is a super-2 number, since 2×3171110472 = 201118832258872418, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (317111057) 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, 847704 + ... + 848077.

It is an arithmetic number, because the mean of its divisors is an integer number (45786114).

Almost surely, 2317111047 is an apocalyptic number.

317111047 is a deficient number, since it is larger than the sum of its proper divisors (49177865).

317111047 is a wasteful number, since it uses less digits than its factorization.

317111047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1695809.

The product of its (nonzero) digits is 588, while the sum is 25.

The square root of 317111047 is about 17807.6120521534. The cubic root of 317111047 is about 681.9258031097.

The spelling of 317111047 in words is "three hundred seventeen million, one hundred eleven thousand, forty-seven".

Divisors: 1 11 17 187 1695781 18653591 28828277 317111047