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2742146785 = 57194123529
BaseRepresentation
bin1010001101110001…
…1101011011100001
321002002211111020001
42203130131123201
521103442144120
61132033420001
7124644602020
oct24334353341
97062744201
102742146785
111187963514
1264640a601
13349152481
141c02848b7
15110b0ce0a
hexa371d6e1

2742146785 has 16 divisors (see below), whose sum is σ = 3958588800. Its totient is φ = 1781364096.

The previous prime is 2742146783. The next prime is 2742146809. The reversal of 2742146785 is 5876412472.

It is a cyclic number.

It is not a de Polignac number, because 2742146785 - 21 = 2742146783 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2742146783) 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 15 ways as a sum of consecutive naturals, for example, 2061100 + ... + 2062429.

It is an arithmetic number, because the mean of its divisors is an integer number (247411800).

Almost surely, 22742146785 is an apocalyptic number.

It is an amenable number.

2742146785 is a deficient number, since it is larger than the sum of its proper divisors (1216442015).

2742146785 is a wasteful number, since it uses less digits than its factorization.

2742146785 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4123560.

The product of its digits is 752640, while the sum is 46.

The square root of 2742146785 is about 52365.5114077959. The cubic root of 2742146785 is about 1399.6847564016.

The spelling of 2742146785 in words is "two billion, seven hundred forty-two million, one hundred forty-six thousand, seven hundred eighty-five".

Divisors: 1 5 7 19 35 95 133 665 4123529 20617645 28864703 78347051 144323515 391735255 548429357 2742146785