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42662638143 = 331580097709
BaseRepresentation
bin100111101110111001…
…000011001000111111
311002010020021120101000
4213232321003020333
51144333113410033
631333212221343
73040135304136
oct475671031077
9132106246330
1042662638143
1117102a46534
12832776a853
13403b8b71a8
1420ca07691d
15119a63ba13
hex9eee4323f

42662638143 has 8 divisors (see below), whose sum is σ = 63203908400. Its totient is φ = 28441758744.

The previous prime is 42662638141. The next prime is 42662638147. The reversal of 42662638143 is 34183626624.

42662638143 is a `hidden beast` number, since 4 + 2 + 6 + 6 + 2 + 638 + 1 + 4 + 3 = 666.

It is not a de Polignac number, because 42662638143 - 21 = 42662638141 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 (42662638141) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 790048828 + ... + 790048881.

It is an arithmetic number, because the mean of its divisors is an integer number (7900488550).

Almost surely, 242662638143 is an apocalyptic number.

42662638143 is a deficient number, since it is larger than the sum of its proper divisors (20541270257).

42662638143 is a wasteful number, since it uses less digits than its factorization.

42662638143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1580097718 (or 1580097712 counting only the distinct ones).

The product of its digits is 995328, while the sum is 45.

The spelling of 42662638143 in words is "forty-two billion, six hundred sixty-two million, six hundred thirty-eight thousand, one hundred forty-three".

Divisors: 1 3 9 27 1580097709 4740293127 14220879381 42662638143