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314446681 = 2910842989
BaseRepresentation
bin10010101111100…
…001001101011001
3210220200112202101
4102233201031121
51120444243211
651111403401
710535516113
oct2257411531
9726615671
10314446681
1115155149a
1289383561
13501b8633
142da943b3
151c9145c1
hex12be1359

314446681 has 4 divisors (see below), whose sum is σ = 325289700. Its totient is φ = 303603664.

The previous prime is 314446679. The next prime is 314446709. The reversal of 314446681 is 186644413.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 186644413 = 428943517.

It can be written as a sum of positive squares in 2 ways, for example, as 119006281 + 195440400 = 10909^2 + 13980^2 .

It is a cyclic number.

It is not a de Polignac number, because 314446681 - 21 = 314446679 is a prime.

It is a super-2 number, since 2×3144466812 = 197753430383831522, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 314446681.

It is not an unprimeable number, because it can be changed into a prime (314446631) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5421466 + ... + 5421523.

It is an arithmetic number, because the mean of its divisors is an integer number (81322425).

Almost surely, 2314446681 is an apocalyptic number.

It is an amenable number.

314446681 is a deficient number, since it is larger than the sum of its proper divisors (10843019).

314446681 is a wasteful number, since it uses less digits than its factorization.

314446681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10843018.

The product of its digits is 55296, while the sum is 37.

The square root of 314446681 is about 17732.6445010326. The cubic root of 314446681 is about 680.0105830245.

The spelling of 314446681 in words is "three hundred fourteen million, four hundred forty-six thousand, six hundred eighty-one".

Divisors: 1 29 10842989 314446681