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312054473 is a prime number
BaseRepresentation
bin10010100110011…
…001001011001001
3210202012000021002
4102212121023021
51114341220343
650544224345
710506263543
oct2246311311
9722160232
10312054473
11150168165
128860b0b5
134c85b823
142d630693
151c5e08b8
hex129992c9

312054473 has 2 divisors, whose sum is σ = 312054474. Its totient is φ = 312054472.

The previous prime is 312054469. The next prime is 312054517. The reversal of 312054473 is 374450213.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 221176384 + 90878089 = 14872^2 + 9533^2 .

It is an emirp because it is prime and its reverse (374450213) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 312054473 - 22 = 312054469 is a prime.

It is not a weakly prime, because it can be changed into another prime (312054433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156027236 + 156027237.

It is an arithmetic number, because the mean of its divisors is an integer number (156027237).

Almost surely, 2312054473 is an apocalyptic number.

It is an amenable number.

312054473 is a deficient number, since it is larger than the sum of its proper divisors (1).

312054473 is an equidigital number, since it uses as much as digits as its factorization.

312054473 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10080, while the sum is 29.

The square root of 312054473 is about 17665.0636285296. The cubic root of 312054473 is about 678.2817584129.

The spelling of 312054473 in words is "three hundred twelve million, fifty-four thousand, four hundred seventy-three".