Base | Representation |
---|---|
bin | 11100000100011010… |
… | …101001001101100101 |
3 | 2212210102120221122012 |
4 | 130010122221031211 |
5 | 443211022130420 |
6 | 21502352244005 |
7 | 2114604056402 |
oct | 340432511545 |
9 | 85712527565 |
10 | 30138864485 |
11 | 1186666aa74 |
12 | 5a11540605 |
13 | 2ac4095632 |
14 | 165ca752a9 |
15 | bb5e08dc5 |
hex | 7046a9365 |
30138864485 has 16 divisors (see below), whose sum is σ = 38342318592. Its totient is φ = 22702680000.
The previous prime is 30138864421. The next prime is 30138864487. The reversal of 30138864485 is 58446883103.
It is not a de Polignac number, because 30138864485 - 26 = 30138864421 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30138864487) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2621891 + ... + 2633360.
It is an arithmetic number, because the mean of its divisors is an integer number (2396394912).
Almost surely, 230138864485 is an apocalyptic number.
It is an amenable number.
30138864485 is a deficient number, since it is larger than the sum of its proper divisors (8203454107).
30138864485 is a wasteful number, since it uses less digits than its factorization.
30138864485 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 5255324.
The product of its (nonzero) digits is 2211840, while the sum is 50.
The spelling of 30138864485 in words is "thirty billion, one hundred thirty-eight million, eight hundred sixty-four thousand, four hundred eighty-five".
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