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42705554841 = 324745061649
BaseRepresentation
bin100111110001011100…
…110000110110011001
311002020020000222000100
4213301130300312121
51144430110223331
631341344130013
73041166140535
oct476134606631
9132206028010
1042705554841
1117125199484
12833a006909
1340477624a1
1420d1a48bc5
15119e2b7ae6
hex9f1730d99

42705554841 has 6 divisors (see below), whose sum is σ = 61685801450. Its totient is φ = 28470369888.

The previous prime is 42705554821. The next prime is 42705554849. The reversal of 42705554841 is 14845550724.

It can be written as a sum of positive squares in only one way, i.e., 22083446025 + 20622108816 = 148605^2 + 143604^2 .

It is not a de Polignac number, because 42705554841 - 215 = 42705522073 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (42705554849) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2372530816 + ... + 2372530833.

Almost surely, 242705554841 is an apocalyptic number.

It is an amenable number.

42705554841 is a deficient number, since it is larger than the sum of its proper divisors (18980246609).

42705554841 is a wasteful number, since it uses less digits than its factorization.

42705554841 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4745061655 (or 4745061652 counting only the distinct ones).

The product of its (nonzero) digits is 896000, while the sum is 45.

The spelling of 42705554841 in words is "forty-two billion, seven hundred five million, five hundred fifty-four thousand, eight hundred forty-one".

Divisors: 1 3 9 4745061649 14235184947 42705554841