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305214423 = 3195354639
BaseRepresentation
bin10010001100010…
…011001111010111
3210021022111110220
4102030103033113
51111113330143
650141445423
710364164653
oct2214231727
9707274426
10305214423
11147316128
1286270873
134b305367
142c76da63
151bbddd83
hex123133d7

305214423 has 8 divisors (see below), whose sum is σ = 428371200. Its totient is φ = 192766968.

The previous prime is 305214421. The next prime is 305214433. The reversal of 305214423 is 324412503.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 305214423 - 21 = 305214421 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 305214393 and 305214402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (305214421) 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, 2677263 + ... + 2677376.

It is an arithmetic number, because the mean of its divisors is an integer number (53546400).

Almost surely, 2305214423 is an apocalyptic number.

305214423 is a deficient number, since it is larger than the sum of its proper divisors (123156777).

305214423 is a wasteful number, since it uses less digits than its factorization.

305214423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5354661.

The product of its (nonzero) digits is 2880, while the sum is 24.

The square root of 305214423 is about 17470.3870306299. The cubic root of 305214423 is about 673.2892558202.

Adding to 305214423 its reverse (324412503), we get a palindrome (629626926).

The spelling of 305214423 in words is "three hundred five million, two hundred fourteen thousand, four hundred twenty-three".

Divisors: 1 3 19 57 5354639 16063917 101738141 305214423