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2942887120 = 24536786089
BaseRepresentation
bin1010111101101000…
…1110010011010000
321121002120011012021
42233122032103100
522011334341440
61204004141224
7132633061555
oct25732162320
97532504167
102942887120
111280201718
126a1697814
1337b908734
141dcbbaa2c
1512356184a
hexaf68e4d0

2942887120 has 20 divisors (see below), whose sum is σ = 6842212740. Its totient is φ = 1177154816.

The previous prime is 2942887117. The next prime is 2942887121. The reversal of 2942887120 is 217882492.

2942887120 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 1070074944 + 1872812176 = 32712^2 + 43276^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2942887121) 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, 18392965 + ... + 18393124.

It is an arithmetic number, because the mean of its divisors is an integer number (342110637).

Almost surely, 22942887120 is an apocalyptic number.

2942887120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2942887120 is an abundant number, since it is smaller than the sum of its proper divisors (3899325620).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2942887120 is a wasteful number, since it uses less digits than its factorization.

2942887120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36786102 (or 36786096 counting only the distinct ones).

The product of its (nonzero) digits is 129024, while the sum is 43.

The square root of 2942887120 is about 54248.3835703885. The cubic root of 2942887120 is about 1433.0385322439.

The spelling of 2942887120 in words is "two billion, nine hundred forty-two million, eight hundred eighty-seven thousand, one hundred twenty".

Divisors: 1 2 4 5 8 10 16 20 40 80 36786089 73572178 147144356 183930445 294288712 367860890 588577424 735721780 1471443560 2942887120