Base | Representation |
---|---|
bin | 1011001000001101… |
… | …1011010011110100 |
3 | 21201012000122200000 |
4 | 2302003123103310 |
5 | 22104213231430 |
6 | 1212230551300 |
7 | 134012100336 |
oct | 26203332364 |
9 | 7635018600 |
10 | 2987242740 |
11 | 12a3247759 |
12 | 6b4508530 |
13 | 387b68971 |
14 | 204a45456 |
15 | 1273c3e60 |
hex | b20db4f4 |
2987242740 has 72 divisors (see below), whose sum is σ = 9396922080. Its totient is φ = 796596768.
The previous prime is 2987242697. The next prime is 2987242751. The reversal of 2987242740 is 472427892.
2987242740 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a Harshad number since it is a multiple of its sum of digits (45).
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 302470 + ... + 312189.
Almost surely, 22987242740 is an apocalyptic number.
2987242740 is a gapful number since it is divisible by the number (20) formed by its first and last digit.
It is an amenable number.
2987242740 is an abundant number, since it is smaller than the sum of its proper divisors (6409679340).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
2987242740 is a wasteful number, since it uses less digits than its factorization.
2987242740 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 614683 (or 614669 counting only the distinct ones).
The product of its (nonzero) digits is 451584, while the sum is 45.
The square root of 2987242740 is about 54655.6743623203. The cubic root of 2987242740 is about 1440.2023153240.
The spelling of 2987242740 in words is "two billion, nine hundred eighty-seven million, two hundred forty-two thousand, seven hundred forty".
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