Base | Representation |
---|---|
bin | 111001111111… |
… | …1000111100111 |
3 | 2010012201221122 |
4 | 1303333013213 |
5 | 30240430340 |
6 | 3003404155 |
7 | 516303410 |
oct | 163770747 |
9 | 63181848 |
10 | 30405095 |
11 | 16187886 |
12 | a22365b |
13 | 63b74a6 |
14 | 4076807 |
15 | 2a08db5 |
hex | 1cff1e7 |
30405095 has 32 divisors (see below), whose sum is σ = 44592768. Its totient is φ = 19427328.
The previous prime is 30405071. The next prime is 30405101. The reversal of 30405095 is 59050403.
It is not a de Polignac number, because 30405095 - 26 = 30405031 is a prime.
It is a zygodrome in base 2.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 81329 + ... + 81701.
It is an arithmetic number, because the mean of its divisors is an integer number (1393524).
Almost surely, 230405095 is an apocalyptic number.
30405095 is a gapful number since it is divisible by the number (35) formed by its first and last digit.
30405095 is a deficient number, since it is larger than the sum of its proper divisors (14187673).
30405095 is a wasteful number, since it uses less digits than its factorization.
30405095 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 539.
The product of its (nonzero) digits is 2700, while the sum is 26.
The square root of 30405095 is about 5514.0815191653. The cubic root of 30405095 is about 312.1155849140.
Adding to 30405095 its reverse (59050403), we get a palindrome (89455498).
The spelling of 30405095 in words is "thirty million, four hundred five thousand, ninety-five".
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