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312201424 = 2419512589
BaseRepresentation
bin10010100110111…
…101000011010000
3210202110110211201
4102212331003100
51114410421144
650551320544
710510445143
oct2246750320
9722413751
10312201424
11150258607
1288680154
134c8b0692
142d66c05a
151c61e1d4
hex129bd0d0

312201424 has 10 divisors (see below), whose sum is σ = 604890290. Its totient is φ = 156100704.

The previous prime is 312201377. The next prime is 312201451. The reversal of 312201424 is 424102213.

It can be written as a sum of positive squares in only one way, i.e., 156750400 + 155451024 = 12520^2 + 12468^2 .

It is a congruent number.

It is an unprimeable number.

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, 9756279 + ... + 9756310.

It is an arithmetic number, because the mean of its divisors is an integer number (60489029).

Almost surely, 2312201424 is an apocalyptic number.

It is an amenable number.

312201424 is a deficient number, since it is larger than the sum of its proper divisors (292688866).

312201424 is a wasteful number, since it uses less digits than its factorization.

312201424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19512597 (or 19512591 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 312201424 is about 17669.2225069469. Note that the first 3 decimals coincide. The cubic root of 312201424 is about 678.3882126267.

Adding to 312201424 its reverse (424102213), we get a palindrome (736303637).

The spelling of 312201424 in words is "three hundred twelve million, two hundred one thousand, four hundred twenty-four".

Divisors: 1 2 4 8 16 19512589 39025178 78050356 156100712 312201424