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2042717429 = 8681235309
BaseRepresentation
bin111100111000001…
…0110010011110101
312021100201210112002
41321300112103311
513140413424204
6534410305045
7101422545254
oct17160262365
95240653462
102042717429
11959073925
12490128185
13267282a4c
1415541879b
15be4ee91e
hex79c164f5

2042717429 has 4 divisors (see below), whose sum is σ = 2042961420. Its totient is φ = 2042473440.

The previous prime is 2042717407. The next prime is 2042717461. The reversal of 2042717429 is 9247172402.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 978000529 + 1064716900 = 31273^2 + 32630^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-2042717429 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2042717392 and 2042717401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2042717029) 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 3 ways as a sum of consecutive naturals, for example, 108974 + ... + 126335.

It is an arithmetic number, because the mean of its divisors is an integer number (510740355).

Almost surely, 22042717429 is an apocalyptic number.

It is an amenable number.

2042717429 is a deficient number, since it is larger than the sum of its proper divisors (243991).

2042717429 is an equidigital number, since it uses as much as digits as its factorization.

2042717429 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 243990.

The product of its (nonzero) digits is 56448, while the sum is 38.

The square root of 2042717429 is about 45196.4315958683. The cubic root of 2042717429 is about 1268.8280318141.

The spelling of 2042717429 in words is "two billion, forty-two million, seven hundred seventeen thousand, four hundred twenty-nine".

Divisors: 1 8681 235309 2042717429