Base | Representation |
---|---|
bin | 1011001000010001… |
… | …1111000000101000 |
3 | 21201012112202001101 |
4 | 2302010133000220 |
5 | 22104301120130 |
6 | 1212240531144 |
7 | 134014333651 |
oct | 26204370050 |
9 | 7635482041 |
10 | 2987520040 |
11 | 12a341702a |
12 | 6b4620ab4 |
13 | 387c34c4b |
14 | 204ab8528 |
15 | 12742b1ca |
hex | b211f028 |
2987520040 has 16 divisors (see below), whose sum is σ = 6721920180. Its totient is φ = 1195008000.
The previous prime is 2987520013. The next prime is 2987520083. The reversal of 2987520040 is 400257892.
It can be written as a sum of positive squares in 2 ways, for example, as 2965673764 + 21846276 = 54458^2 + 4674^2 .
It is an unprimeable number.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37343961 + ... + 37344040.
Almost surely, 22987520040 is an apocalyptic number.
2987520040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.
It is an amenable number.
2987520040 is an abundant number, since it is smaller than the sum of its proper divisors (3734400140).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
2987520040 is a wasteful number, since it uses less digits than its factorization.
2987520040 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 74688012 (or 74688008 counting only the distinct ones).
The product of its (nonzero) digits is 40320, while the sum is 37.
The square root of 2987520040 is about 54658.2110940342. The cubic root of 2987520040 is about 1440.2468776825.
The spelling of 2987520040 in words is "two billion, nine hundred eighty-seven million, five hundred twenty thousand, forty".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.067 sec. • engine limits •