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314220131 = 961332687
BaseRepresentation
bin10010101110101…
…001111001100011
3210220021000222122
4102232221321203
51120420021011
651102454455
710533553451
oct2256517143
9726230878
10314220131
11151407265
128929442b
1350139494
142da359d1
151c8bc3db
hex12ba9e63

314220131 has 4 divisors (see below), whose sum is σ = 314262432. Its totient is φ = 314177832.

The previous prime is 314220121. The next prime is 314220149. The reversal of 314220131 is 131022413.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 131022413 = 532472121.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-314220131 is a prime.

It is a super-2 number, since 2×3142201312 = 197468581451314322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (314220121) 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, 6731 + ... + 25956.

It is an arithmetic number, because the mean of its divisors is an integer number (78565608).

Almost surely, 2314220131 is an apocalyptic number.

314220131 is a deficient number, since it is larger than the sum of its proper divisors (42301).

314220131 is an equidigital number, since it uses as much as digits as its factorization.

314220131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42300.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 314220131 is about 17726.2554139333. The cubic root of 314220131 is about 679.8472342815.

Adding to 314220131 its reverse (131022413), we get a palindrome (445242544).

The spelling of 314220131 in words is "three hundred fourteen million, two hundred twenty thousand, one hundred thirty-one".

Divisors: 1 9613 32687 314220131