Base | Representation |
---|---|
bin | 111011000110… |
… | …0100011011111 |
3 | 2011022011121221 |
4 | 1312030203133 |
5 | 30413000130 |
6 | 3024034211 |
7 | 524235400 |
oct | 166144337 |
9 | 64264557 |
10 | 30984415 |
11 | 16543060 |
12 | a462967 |
13 | 655b097 |
14 | 41879a7 |
15 | 2ac087a |
hex | 1d8c8df |
30984415 has 24 divisors (see below), whose sum is σ = 47187792. Its totient is φ = 19313280.
The previous prime is 30984409. The next prime is 30984439. The reversal of 30984415 is 51448903.
It is not a de Polignac number, because 30984415 - 219 = 30460127 is a prime.
It is a Duffinian number.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3054 + ... + 8443.
It is an arithmetic number, because the mean of its divisors is an integer number (1966158).
Almost surely, 230984415 is an apocalyptic number.
30984415 is a gapful number since it is divisible by the number (35) formed by its first and last digit.
30984415 is a deficient number, since it is larger than the sum of its proper divisors (16203377).
30984415 is a wasteful number, since it uses less digits than its factorization.
30984415 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 11527 (or 11520 counting only the distinct ones).
The product of its (nonzero) digits is 17280, while the sum is 34.
The square root of 30984415 is about 5566.3646125636. The cubic root of 30984415 is about 314.0854129550.
The spelling of 30984415 in words is "thirty million, nine hundred eighty-four thousand, four hundred fifteen".
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