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142484355841 = 3774712
BaseRepresentation
bin1000010010110010111…
…0101011101100000001
3111121202222110020021111
42010230232223230001
54313301443341331
6145242330123321
713202616020152
oct2045456535401
9447688406244
10142484355841
1155477782493
1223745880541
13105894a4839
146c79569929
153a8ddabdb1
hex212cbabb01

142484355841 has 3 divisors (see below), whose sum is σ = 142484733313. Its totient is φ = 142483978370.

The previous prime is 142484355757. The next prime is 142484355947. The reversal of 142484355841 is 148553484241.

The square root of 142484355841 is 377471.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 148553484241 = 564126334601.

It is not a de Polignac number, because 142484355841 - 221 = 142482258689 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (142484365841) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 188736 + ... + 566206.

Almost surely, 2142484355841 is an apocalyptic number.

142484355841 is the 377471-st square number.

142484355841 is the 188736-th centered octagonal number.

It is an amenable number.

142484355841 is a deficient number, since it is larger than the sum of its proper divisors (377472).

142484355841 is an frugal number, since it uses more digits than its factorization.

142484355841 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 754942 (or 377471 counting only the distinct ones).

The product of its digits is 2457600, while the sum is 49.

Multiplying 142484355841 by its sum of digits (49), we get a square (6981733436209 = 26422972).

The spelling of 142484355841 in words is "one hundred forty-two billion, four hundred eighty-four million, three hundred fifty-five thousand, eight hundred forty-one".

Divisors: 1 377471 142484355841