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442111214 = 21773178127
BaseRepresentation
bin11010010110100…
…001010011101110
31010210220120120102
4122112201103232
51401140024324
6111511551102
713645611656
oct3226412356
91123816512
10442111214
11207618776
1210408b492
137079708c
1442a07366
1528c30dae
hex1a5a14ee

442111214 has 16 divisors (see below), whose sum is σ = 711799488. Its totient is φ = 205201152.

The previous prime is 442111199. The next prime is 442111217. The reversal of 442111214 is 412111244.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (442111217) 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, 86582 + ... + 91545.

It is an arithmetic number, because the mean of its divisors is an integer number (44487468).

Almost surely, 2442111214 is an apocalyptic number.

442111214 is a deficient number, since it is larger than the sum of its proper divisors (269688274).

442111214 is a wasteful number, since it uses less digits than its factorization.

442111214 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 178219.

The product of its digits is 256, while the sum is 20.

The square root of 442111214 is about 21026.4408305353. The cubic root of 442111214 is about 761.8050435500.

Adding to 442111214 its reverse (412111244), we get a palindrome (854222458).

The spelling of 442111214 in words is "four hundred forty-two million, one hundred eleven thousand, two hundred fourteen".

Divisors: 1 2 17 34 73 146 1241 2482 178127 356254 3028159 6056318 13003271 26006542 221055607 442111214