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442419741 = 3249157749
BaseRepresentation
bin11010010111101…
…100101000011101
31010211111020210100
4122113230220131
51401224412431
6111522331313
713651335321
oct3227545035
91124436710
10442419741
11207809555
121041b9b39
137087463a
1442a87981
1528c924e6
hex1a5eca1d

442419741 has 6 divisors (see below), whose sum is σ = 639050750. Its totient is φ = 294946488.

The previous prime is 442419739. The next prime is 442419751. The reversal of 442419741 is 147914244.

442419741 is a `hidden beast` number, since 4 + 424 + 197 + 41 = 666.

It can be written as a sum of positive squares in only one way, i.e., 403407225 + 39012516 = 20085^2 + 6246^2 .

It is not a de Polignac number, because 442419741 - 21 = 442419739 is a prime.

It is a super-3 number, since 3×4424197413 (a number of 27 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 442419696 and 442419705.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (442419721) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 24578866 + ... + 24578883.

Almost surely, 2442419741 is an apocalyptic number.

It is an amenable number.

442419741 is a deficient number, since it is larger than the sum of its proper divisors (196631009).

442419741 is a wasteful number, since it uses less digits than its factorization.

442419741 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49157755 (or 49157752 counting only the distinct ones).

The product of its digits is 32256, while the sum is 36.

The square root of 442419741 is about 21033.7761944925. The cubic root of 442419741 is about 761.9822107158.

The spelling of 442419741 in words is "four hundred forty-two million, four hundred nineteen thousand, seven hundred forty-one".

Divisors: 1 3 9 49157749 147473247 442419741