Base | Representation |
---|---|
bin | 11100000011111100… |
… | …101110110111000110 |
3 | 2212202212211120120000 |
4 | 130003330232313012 |
5 | 443202020221202 |
6 | 21501512222130 |
7 | 2114450320662 |
oct | 340374566706 |
9 | 85685746500 |
10 | 30131023302 |
11 | 118621a4856 |
12 | 5a0a99a946 |
13 | 2ac257b593 |
14 | 165b9d38a2 |
15 | bb53aa91c |
hex | 703f2edc6 |
30131023302 has 40 divisors (see below), whose sum is σ = 67888893072. Its totient is φ = 9988174800.
The previous prime is 30131023271. The next prime is 30131023319. The reversal of 30131023302 is 20332013103.
30131023302 is a `hidden beast` number, since 30 + 1 + 310 + 23 + 302 = 666.
It is a Harshad number since it is a multiple of its sum of digits (18).
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 484474 + ... + 543117.
Almost surely, 230131023302 is an apocalyptic number.
30131023302 is an abundant number, since it is smaller than the sum of its proper divisors (37757869770).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30131023302 is a wasteful number, since it uses less digits than its factorization.
30131023302 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1027786 (or 1027777 counting only the distinct ones).
The product of its (nonzero) digits is 324, while the sum is 18.
Adding to 30131023302 its reverse (20332013103), we get a palindrome (50463036405).
The spelling of 30131023302 in words is "thirty billion, one hundred thirty-one million, twenty-three thousand, three hundred two".
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