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1442842471 = 71131118223
BaseRepresentation
bin101011000000000…
…0000011101100111
310201112221222210001
41112000000131213
510423331424341
6355101042131
750516646550
oct12600003547
93645858701
101442842471
116804a09a4
12343256347
1319cbcc055
14d98a5327
1586a08d31
hex56000767

1442842471 has 8 divisors (see below), whose sum is σ = 1649199104. Its totient is φ = 1236544920.

The previous prime is 1442842451. The next prime is 1442842487. The reversal of 1442842471 is 1742482441.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1442842471 - 217 = 1442711399 is a prime.

It is a super-3 number, since 3×14428424713 (a number of 28 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a self number, because there is not a number n which added to its sum of digits gives 1442842471.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1442842451) 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, 70066 + ... + 88288.

It is an arithmetic number, because the mean of its divisors is an integer number (206149888).

Almost surely, 21442842471 is an apocalyptic number.

1442842471 is a deficient number, since it is larger than the sum of its proper divisors (206356633).

1442842471 is a wasteful number, since it uses less digits than its factorization.

1442842471 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29541.

The product of its digits is 57344, while the sum is 37.

The square root of 1442842471 is about 37984.7663017689. The cubic root of 1442842471 is about 1129.9857650855.

The spelling of 1442842471 in words is "one billion, four hundred forty-two million, eight hundred forty-two thousand, four hundred seventy-one".

Divisors: 1 7 11311 18223 79177 127561 206120353 1442842471