Base | Representation |
---|---|
bin | 1011001001000000… |
… | …0101111010101011 |
3 | 21201102021100012010 |
4 | 2302100011322223 |
5 | 22111041003422 |
6 | 1212430051003 |
7 | 134052236346 |
oct | 26220057253 |
9 | 7642240163 |
10 | 2990562987 |
11 | 12a5105265 |
12 | 6b5649a63 |
13 | 38875bcc9 |
14 | 20526b45d |
15 | 12782cb0c |
hex | b2405eab |
2990562987 has 6 divisors (see below), whose sum is σ = 3987543612. Its totient is φ = 1993645512.
The previous prime is 2990562977. The next prime is 2990562989. The reversal of 2990562987 is 7892650992.
It is not a de Polignac number, because 2990562987 - 216 = 2990497451 is a prime.
It is not an unprimeable number, because it can be changed into a prime (2990562989) by changing a digit.
It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 78933 + ... + 110505.
It is an arithmetic number, because the mean of its divisors is an integer number (664590602).
Almost surely, 22990562987 is an apocalyptic number.
2990562987 is a deficient number, since it is larger than the sum of its proper divisors (996980625).
2990562987 is an frugal number, since it uses more digits than its factorization.
2990562987 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 63149 (or 31576 counting only the distinct ones).
The product of its (nonzero) digits is 4898880, while the sum is 57.
The square root of 2990562987 is about 54686.0401473722. The cubic root of 2990562987 is about 1440.7357009350.
The spelling of 2990562987 in words is "two billion, nine hundred ninety million, five hundred sixty-two thousand, nine hundred eighty-seven".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.069 sec. • engine limits •