Base | Representation |
---|---|
bin | 11100100110100110… |
… | …000111101111111011 |
3 | 2221021101121102012201 |
4 | 130212212013233323 |
5 | 1000344322022431 |
6 | 22035315051031 |
7 | 2135036141560 |
oct | 344646075773 |
9 | 87241542181 |
10 | 30712298491 |
11 | 12030323476 |
12 | 5b515a0a77 |
13 | 2b85b1c2b4 |
14 | 16b4ca4867 |
15 | beb42a461 |
hex | 726987bfb |
30712298491 has 8 divisors (see below), whose sum is σ = 35955861984. Its totient is φ = 25682758080.
The previous prime is 30712298411. The next prime is 30712298531. The reversal of 30712298491 is 19489221703.
It is a happy number.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 30712298491 - 221 = 30710201339 is a prime.
It is not an unprimeable number, because it can be changed into a prime (30712298411) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 53505460 + ... + 53506033.
It is an arithmetic number, because the mean of its divisors is an integer number (4494482748).
Almost surely, 230712298491 is an apocalyptic number.
30712298491 is a deficient number, since it is larger than the sum of its proper divisors (5243563493).
30712298491 is a wasteful number, since it uses less digits than its factorization.
30712298491 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 107011541.
The product of its (nonzero) digits is 217728, while the sum is 46.
The spelling of 30712298491 in words is "thirty billion, seven hundred twelve million, two hundred ninety-eight thousand, four hundred ninety-one".
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