Base | Representation |
---|---|
bin | 101010111110100… |
… | …1011101110000000 |
3 | 10201111120101020112 |
4 | 1111331023232000 |
5 | 10423134232034 |
6 | 355033130452 |
7 | 50510444300 |
oct | 12575135600 |
9 | 3644511215 |
10 | 1442102144 |
11 | 68003575a |
12 | 342b59a28 |
13 | 19ca000a2 |
14 | d9751600 |
15 | 8690e7ce |
hex | 55f4bb80 |
1442102144 has 96 divisors (see below), whose sum is σ = 3450260160. Its totient is φ = 598026240.
The previous prime is 1442102083. The next prime is 1442102149. The reversal of 1442102144 is 4412012441.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (1442102149) by changing a digit.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 190724 + ... + 198140.
It is an arithmetic number, because the mean of its divisors is an integer number (35940210).
Almost surely, 21442102144 is an apocalyptic number.
1442102144 is a gapful number since it is divisible by the number (14) formed by its first and last digit.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 1442102144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1725130080).
1442102144 is an abundant number, since it is smaller than the sum of its proper divisors (2008158016).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1442102144 is an equidigital number, since it uses as much as digits as its factorization.
1442102144 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 7476 (or 7457 counting only the distinct ones).
The product of its (nonzero) digits is 1024, while the sum is 23.
The square root of 1442102144 is about 37975.0199999947. The cubic root of 1442102144 is about 1129.7924656068.
Adding to 1442102144 its reverse (4412012441), we get a palindrome (5854114585).
The spelling of 1442102144 in words is "one billion, four hundred forty-two million, one hundred two thousand, one hundred forty-four".
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