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442431294 = 23269274121
BaseRepresentation
bin11010010111101…
…111011100111110
31010211111211122020
4122113233130332
51401230300134
6111522501010
713651414104
oct3227573476
91124454566
10442431294
112078171a8
12104204766
1370879986
1442a8bc74
1528c95b49
hex1a5ef73e

442431294 has 16 divisors (see below), whose sum is σ = 888155280. Its totient is φ = 146928320.

The previous prime is 442431293. The next prime is 442431313. The reversal of 442431294 is 492134244.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (442431293) 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, 135447 + ... + 138674.

It is an arithmetic number, because the mean of its divisors is an integer number (55509705).

Almost surely, 2442431294 is an apocalyptic number.

442431294 is an abundant number, since it is smaller than the sum of its proper divisors (445723986).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

442431294 is a wasteful number, since it uses less digits than its factorization.

442431294 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 274395.

The product of its digits is 27648, while the sum is 33.

The square root of 442431294 is about 21034.0508224165. The cubic root of 442431294 is about 761.9888432588.

The spelling of 442431294 in words is "four hundred forty-two million, four hundred thirty-one thousand, two hundred ninety-four".

Divisors: 1 2 3 6 269 538 807 1614 274121 548242 822363 1644726 73738549 147477098 221215647 442431294