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1442030101 = 7319753837
BaseRepresentation
bin101010111110011…
…1010001000010101
310201111102201102021
41111330322020111
510423124430401
6355031413141
750510024251
oct12574721025
93644381367
101442030101
1167aa96616
12342b241b1
1319c9a6365
14d9733261
15868e82a1
hex55f3a215

1442030101 has 4 divisors (see below), whose sum is σ = 1461784012. Its totient is φ = 1422276192.

The previous prime is 1442030087. The next prime is 1442030113. The reversal of 1442030101 is 1010302441.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1010302441 = 4872074543.

It can be written as a sum of positive squares in 2 ways, for example, as 970011025 + 472019076 = 31145^2 + 21726^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-1442030101 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1442030141) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9876846 + ... + 9876991.

It is an arithmetic number, because the mean of its divisors is an integer number (365446003).

Almost surely, 21442030101 is an apocalyptic number.

It is an amenable number.

1442030101 is a deficient number, since it is larger than the sum of its proper divisors (19753911).

1442030101 is an equidigital number, since it uses as much as digits as its factorization.

1442030101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19753910.

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 1442030101 is about 37974.0714303852. The cubic root of 1442030101 is about 1129.7736516380.

Adding to 1442030101 its reverse (1010302441), we get a palindrome (2452332542).

It can be divided in two parts, 14420 and 30101, that added together give a square (44521 = 2112).

The spelling of 1442030101 in words is "one billion, four hundred forty-two million, thirty thousand, one hundred one".

Divisors: 1 73 19753837 1442030101