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314430221 = 71912131949
BaseRepresentation
bin10010101111011…
…101001100001101
3210220122201011202
4102233131030031
51120443231341
651111155245
710535420120
oct2257351415
9726581152
10314430221
11151540096
1289375b25
13501b0cb1
142da8c3b7
151c90e79b
hex12bdd30d

314430221 has 16 divisors (see below), whose sum is σ = 378768000. Its totient is φ = 254985408.

The previous prime is 314430211. The next prime is 314430239. The reversal of 314430221 is 122034413.

It is a cyclic number.

It is not a de Polignac number, because 314430221 - 26 = 314430157 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 314430193 and 314430202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (314430211) 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, 160355 + ... + 162303.

It is an arithmetic number, because the mean of its divisors is an integer number (23673000).

Almost surely, 2314430221 is an apocalyptic number.

It is an amenable number.

314430221 is a deficient number, since it is larger than the sum of its proper divisors (64337779).

314430221 is a wasteful number, since it uses less digits than its factorization.

314430221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3188.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 314430221 is about 17732.1803791863. The cubic root of 314430221 is about 679.9987175581.

Adding to 314430221 its reverse (122034413), we get a palindrome (436464634).

The spelling of 314430221 in words is "three hundred fourteen million, four hundred thirty thousand, two hundred twenty-one".

Divisors: 1 7 19 133 1213 1949 8491 13643 23047 37031 161329 259217 2364137 16548959 44918603 314430221