Base | Representation |
---|---|
bin | 11100010111101010… |
… | …011110101111110111 |
3 | 2220121221012220121100 |
4 | 130113222132233313 |
5 | 444341204024111 |
6 | 21554405421143 |
7 | 2125604612031 |
oct | 342752365767 |
9 | 86557186540 |
10 | 30461783031 |
11 | 11a119784a9 |
12 | 5aa170a7b3 |
13 | 2b45c590b4 |
14 | 168d8d2c51 |
15 | bd4443756 |
hex | 717a9ebf7 |
30461783031 has 6 divisors (see below), whose sum is σ = 44000353280. Its totient is φ = 20307855348.
The previous prime is 30461783029. The next prime is 30461783057. The reversal of 30461783031 is 13038716403.
30461783031 is a `hidden beast` number, since 3 + 0 + 4 + 617 + 8 + 3 + 0 + 31 = 666.
It is not a de Polignac number, because 30461783031 - 21 = 30461783029 is a prime.
It is a super-2 number, since 2×304617830312 (a number of 22 digits) contains 22 as substring.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30461783431) 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, 1692321271 + ... + 1692321288.
Almost surely, 230461783031 is an apocalyptic number.
30461783031 is a deficient number, since it is larger than the sum of its proper divisors (13538570249).
30461783031 is a wasteful number, since it uses less digits than its factorization.
30461783031 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 3384642565 (or 3384642562 counting only the distinct ones).
The product of its (nonzero) digits is 36288, while the sum is 36.
The spelling of 30461783031 in words is "thirty billion, four hundred sixty-one million, seven hundred eighty-three thousand, thirty-one".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.138 sec. • engine limits •