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312430214 = 2315039197
BaseRepresentation
bin10010100111110…
…100111010000110
3210202220002200102
4102213310322012
51114440231324
651000244102
710512420155
oct2247647206
9722802612
10312430214
111503a4498
1288770632
134c960865
142d6cb59c
151c666dae
hex129f4e86

312430214 has 8 divisors (see below), whose sum is σ = 483763008. Its totient is φ = 151175880.

The previous prime is 312430213. The next prime is 312430219. The reversal of 312430214 is 412034213.

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

It is a super-2 number, since 2×3124302142 = 195225277240171592, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312430213) 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, 2519537 + ... + 2519660.

It is an arithmetic number, because the mean of its divisors is an integer number (60470376).

Almost surely, 2312430214 is an apocalyptic number.

312430214 is a deficient number, since it is larger than the sum of its proper divisors (171332794).

312430214 is a wasteful number, since it uses less digits than its factorization.

312430214 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5039230.

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

The square root of 312430214 is about 17675.6955733006. The cubic root of 312430214 is about 678.5538861620.

Adding to 312430214 its reverse (412034213), we get a palindrome (724464427).

The spelling of 312430214 in words is "three hundred twelve million, four hundred thirty thousand, two hundred fourteen".

Divisors: 1 2 31 62 5039197 10078394 156215107 312430214