Base | Representation |
---|---|
bin | 11100101011001010… |
… | …011000110100010111 |
3 | 2221110201202220120000 |
4 | 130223022120310113 |
5 | 1001023430230310 |
6 | 22051053142343 |
7 | 2136656311665 |
oct | 345312306427 |
9 | 87421686500 |
10 | 30788914455 |
11 | 1206a5a3152 |
12 | 5b7318a9b3 |
13 | 2b989662a0 |
14 | 16c1129c35 |
15 | c030114c0 |
hex | 72b298d17 |
30788914455 has 160 divisors (see below), whose sum is σ = 63298464768. Its totient is φ = 14183424000.
The previous prime is 30788914447. The next prime is 30788914517. The reversal of 30788914455 is 55441988703.
30788914455 is a `hidden beast` number, since 30 + 7 + 88 + 91 + 445 + 5 = 666.
It is not a de Polignac number, because 30788914455 - 23 = 30788914447 is a prime.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 17094555 + ... + 17096355.
Almost surely, 230788914455 is an apocalyptic number.
30788914455 is an abundant number, since it is smaller than the sum of its proper divisors (32509550313).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30788914455 is a wasteful number, since it uses less digits than its factorization.
30788914455 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2039 (or 2030 counting only the distinct ones).
The product of its (nonzero) digits is 4838400, while the sum is 54.
The spelling of 30788914455 in words is "thirty billion, seven hundred eighty-eight million, nine hundred fourteen thousand, four hundred fifty-five".
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