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442414542 = 231014391663
BaseRepresentation
bin11010010111101…
…011010111001110
31010211110222122210
4122113223113032
51401224231132
6111522251250
713651314213
oct3227532716
91124428583
10442414542
11207805659
121041b6b26
137087216b
1442a85b0a
1528c90bcc
hex1a5eb5ce

442414542 has 32 divisors (see below), whose sum is σ = 896163840. Its totient is φ = 145591200.

The previous prime is 442414519. The next prime is 442414543. The reversal of 442414542 is 245414244.

It is a super-4 number, since 4×4424145424 (a number of 36 digits) contains 4444 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (442414543) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 265203 + ... + 266865.

It is an arithmetic number, because the mean of its divisors is an integer number (28005120).

Almost surely, 2442414542 is an apocalyptic number.

442414542 is an abundant number, since it is smaller than the sum of its proper divisors (453749298).

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

442414542 is a wasteful number, since it uses less digits than its factorization.

442414542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2208.

The product of its digits is 20480, while the sum is 30.

The square root of 442414542 is about 21033.6526071912. The cubic root of 442414542 is about 761.9792259477.

Adding to 442414542 its reverse (245414244), we get a palindrome (687828786).

The spelling of 442414542 in words is "four hundred forty-two million, four hundred fourteen thousand, five hundred forty-two".

Divisors: 1 2 3 6 101 202 303 439 606 878 1317 1663 2634 3326 4989 9978 44339 88678 133017 167963 266034 335926 503889 730057 1007778 1460114 2190171 4380342 73735757 147471514 221207271 442414542