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2942855741 = 7420407963
BaseRepresentation
bin1010111101101000…
…0110101000111101
321121002111120011002
42233122012220331
522011332340431
61204003340045
7132632601230
oct25732065075
97532446132
102942855741
111280190091
126a1681625
1337b8c7377
141dcbad417
151235573cb
hexaf686a3d

2942855741 has 4 divisors (see below), whose sum is σ = 3363263712. Its totient is φ = 2522447772.

The previous prime is 2942855683. The next prime is 2942855759. The reversal of 2942855741 is 1475582492.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-2942855741 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 (2942855341) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 210203975 + ... + 210203988.

It is an arithmetic number, because the mean of its divisors is an integer number (840815928).

Almost surely, 22942855741 is an apocalyptic number.

It is an amenable number.

2942855741 is a deficient number, since it is larger than the sum of its proper divisors (420407971).

2942855741 is an equidigital number, since it uses as much as digits as its factorization.

2942855741 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 420407970.

The product of its digits is 806400, while the sum is 47.

The square root of 2942855741 is about 54248.0943536268. The cubic root of 2942855741 is about 1433.0334388924.

The spelling of 2942855741 in words is "two billion, nine hundred forty-two million, eight hundred fifty-five thousand, seven hundred forty-one".

Divisors: 1 7 420407963 2942855741