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2942041081 = 73113557793
BaseRepresentation
bin1010111101011011…
…1111101111111001
321121000222011122111
42233112333233321
522011130303311
61203534052321
7132622636150
oct25726775771
97530864574
102942041081
11127a784011
126a134a0a1
1337b6a0615
141dca3a597
15123445d21
hexaf5bfbf9

2942041081 has 8 divisors (see below), whose sum is σ = 3470795264. Its totient is φ = 2440402560.

The previous prime is 2942041079. The next prime is 2942041103. The reversal of 2942041081 is 1801402492.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2942041081 - 21 = 2942041079 is a prime.

It is a super-2 number, since 2×29420410812 = 17311211444583297122, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2942041001) 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, 6778680 + ... + 6779113.

It is an arithmetic number, because the mean of its divisors is an integer number (433849408).

Almost surely, 22942041081 is an apocalyptic number.

It is an amenable number.

2942041081 is a deficient number, since it is larger than the sum of its proper divisors (528754183).

2942041081 is a wasteful number, since it uses less digits than its factorization.

2942041081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13557831.

The product of its (nonzero) digits is 4608, while the sum is 31.

The square root of 2942041081 is about 54240.5851830527. The cubic root of 2942041081 is about 1432.9011928853.

The spelling of 2942041081 in words is "two billion, nine hundred forty-two million, forty-one thousand, eighty-one".

Divisors: 1 7 31 217 13557793 94904551 420291583 2942041081