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317838011 = 1013146911
BaseRepresentation
bin10010111100011…
…101001010111011
3211011001211210012
4102330131022323
51122331304021
651312212135
710606402301
oct2274351273
9734054705
10317838011
11153458447
128a53a04b
1350b0513a
14302d8271
151cd8435b
hex12f1d2bb

317838011 has 4 divisors (see below), whose sum is σ = 320985024. Its totient is φ = 314691000.

The previous prime is 317837987. The next prime is 317838013. The reversal of 317838011 is 110838713.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 110838713 = 1011097413.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-317838011 is a prime.

It is a super-2 number, since 2×3178380112 = 202042002472872242, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (317838013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1573355 + ... + 1573556.

It is an arithmetic number, because the mean of its divisors is an integer number (80246256).

Almost surely, 2317838011 is an apocalyptic number.

317838011 is a deficient number, since it is larger than the sum of its proper divisors (3147013).

317838011 is a wasteful number, since it uses less digits than its factorization.

317838011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3147012.

The product of its (nonzero) digits is 4032, while the sum is 32.

The square root of 317838011 is about 17828.0119755401. The cubic root of 317838011 is about 682.4465010148.

The spelling of 317838011 in words is "three hundred seventeen million, eight hundred thirty-eight thousand, eleven".

Divisors: 1 101 3146911 317838011