Base | Representation |
---|---|
bin | 11100010100010001… |
… | …001001011110011111 |
3 | 2220110222000102012100 |
4 | 130110101021132133 |
5 | 444232112420110 |
6 | 21545012340143 |
7 | 2124313424562 |
oct | 342421113637 |
9 | 86428012170 |
10 | 30404810655 |
11 | 119927a529a |
12 | 5a86614653 |
13 | 2b371cc22b |
14 | 16861024d9 |
15 | bce43cbc0 |
hex | 71444979f |
30404810655 has 48 divisors (see below), whose sum is σ = 54210723840. Its totient is φ = 15756548544.
The previous prime is 30404810651. The next prime is 30404810699. The reversal of 30404810655 is 55601840403.
It is a happy number.
It is not a de Polignac number, because 30404810655 - 22 = 30404810651 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30404810651) by changing a digit.
It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 242274 + ... + 345696.
It is an arithmetic number, because the mean of its divisors is an integer number (1129390080).
Almost surely, 230404810655 is an apocalyptic number.
30404810655 is a deficient number, since it is larger than the sum of its proper divisors (23805913185).
30404810655 is a wasteful number, since it uses less digits than its factorization.
30404810655 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 103620 (or 103617 counting only the distinct ones).
The product of its (nonzero) digits is 57600, while the sum is 36.
The spelling of 30404810655 in words is "thirty billion, four hundred four million, eight hundred ten thousand, six hundred fifty-five".
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