Base | Representation |
---|---|
bin | 11000010001011011… |
… | …00100111101000010 |
3 | 1020122011020211000002 |
4 | 30020231210331002 |
5 | 203141423124313 |
6 | 5553021000002 |
7 | 640631150213 |
oct | 141055447502 |
9 | 36564224002 |
10 | 13031067458 |
11 | 5587774942 |
12 | 26380b3002 |
13 | 12c895b806 |
14 | 8b893540a |
15 | 51403c058 |
hex | 308b64f42 |
13031067458 has 4 divisors (see below), whose sum is σ = 19546601190. Its totient is φ = 6515533728.
The previous prime is 13031067457. The next prime is 13031067461. The reversal of 13031067458 is 85476013031.
It is a semiprime because it is the product of two primes.
It can be written as a sum of positive squares in only one way, i.e., 8403938929 + 4627128529 = 91673^2 + 68023^2 .
It is not an unprimeable number, because it can be changed into a prime (13031067457) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3257766863 + ... + 3257766866.
Almost surely, 213031067458 is an apocalyptic number.
13031067458 is a deficient number, since it is larger than the sum of its proper divisors (6515533732).
13031067458 is an equidigital number, since it uses as much as digits as its factorization.
13031067458 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 6515533731.
The product of its (nonzero) digits is 60480, while the sum is 38.
The spelling of 13031067458 in words is "thirteen billion, thirty-one million, sixty-seven thousand, four hundred fifty-eight".
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