Base | Representation |
---|---|
bin | 11100000111010111… |
… | …101010000101000111 |
3 | 2212220212211021202211 |
4 | 130013113222011013 |
5 | 443311213211010 |
6 | 21511322244251 |
7 | 2116045164430 |
oct | 340727520507 |
9 | 85825737684 |
10 | 30188413255 |
11 | 11891632770 |
12 | 5a26056687 |
13 | 2b01423530 |
14 | 1665492487 |
15 | bba44508a |
hex | 7075ea147 |
30188413255 has 128 divisors (see below), whose sum is σ = 52603084800. Its totient is φ = 15999344640.
The previous prime is 30188413237. The next prime is 30188413271. The reversal of 30188413255 is 55231488103.
It is not a de Polignac number, because 30188413255 - 231 = 28040929607 is a prime.
It is a super-2 number, since 2×301884132552 (a number of 22 digits) contains 22 as substring.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 3995221 + ... + 4002769.
It is an arithmetic number, because the mean of its divisors is an integer number (410961600).
Almost surely, 230188413255 is an apocalyptic number.
30188413255 is a gapful number since it is divisible by the number (35) formed by its first and last digit.
30188413255 is a deficient number, since it is larger than the sum of its proper divisors (22414671545).
30188413255 is a wasteful number, since it uses less digits than its factorization.
30188413255 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 7649.
The product of its (nonzero) digits is 115200, while the sum is 40.
The spelling of 30188413255 in words is "thirty billion, one hundred eighty-eight million, four hundred thirteen thousand, two hundred fifty-five".
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