Base | Representation |
---|---|
bin | 111010001011… |
… | …1100101110111 |
3 | 2010101211110020 |
4 | 1310113211313 |
5 | 30302132320 |
6 | 3005500223 |
7 | 520201560 |
oct | 164274567 |
9 | 63354406 |
10 | 30505335 |
11 | 16246123 |
12 | a271673 |
13 | 6420cc3 |
14 | 40a1167 |
15 | 2a28940 |
hex | 1d17977 |
30505335 has 16 divisors (see below), whose sum is σ = 55781376. Its totient is φ = 13945248.
The previous prime is 30505309. The next prime is 30505399. The reversal of 30505335 is 53350503.
It is not a de Polignac number, because 30505335 - 212 = 30501239 is a prime.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 145159 + ... + 145368.
It is an arithmetic number, because the mean of its divisors is an integer number (3486336).
Almost surely, 230505335 is an apocalyptic number.
30505335 is a gapful number since it is divisible by the number (35) formed by its first and last digit.
30505335 is a deficient number, since it is larger than the sum of its proper divisors (25276041).
30505335 is a wasteful number, since it uses less digits than its factorization.
30505335 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 290542.
The product of its (nonzero) digits is 3375, while the sum is 24.
The square root of 30505335 is about 5523.1634956789. The cubic root of 30505335 is about 312.4582045436.
Adding to 30505335 its reverse (53350503), we get a palindrome (83855838).
It can be divided in two parts, 3050 and 5335, that added together give a triangular number (8385 = T129).
The spelling of 30505335 in words is "thirty million, five hundred five thousand, three hundred thirty-five".
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