Base | Representation |
---|---|
bin | 1010011101101011000100 |
3 | 12011100122212 |
4 | 22131223010 |
5 | 1200233410 |
6 | 134442552 |
7 | 32213012 |
oct | 12355304 |
9 | 5140585 |
10 | 2742980 |
11 | 1603929 |
12 | b03458 |
13 | 750686 |
14 | 5158b2 |
15 | 392b05 |
hex | 29dac4 |
2742980 has 48 divisors (see below), whose sum is σ = 6168960. Its totient is φ = 1022208.
The previous prime is 2742979. The next prime is 2742983. The reversal of 2742980 is 892472.
2742980 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is not an unprimeable number, because it can be changed into a prime (2742983) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30776 + ... + 30864.
It is an arithmetic number, because the mean of its divisors is an integer number (128520).
22742980 is an apocalyptic number.
2742980 is a gapful number since it is divisible by the number (20) formed by its first and last digit.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 2742980, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3084480).
2742980 is an abundant number, since it is smaller than the sum of its proper divisors (3425980).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
2742980 is a wasteful number, since it uses less digits than its factorization.
2742980 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 188 (or 186 counting only the distinct ones).
The product of its (nonzero) digits is 8064, while the sum is 32.
The square root of 2742980 is about 1656.1944330301. The cubic root of 2742980 is about 139.9826509114.
The spelling of 2742980 in words is "two million, seven hundred forty-two thousand, nine hundred eighty".
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