Base | Representation |
---|---|
bin | 111010101010… |
… | …0011010101111 |
3 | 2010212111012210 |
4 | 1311110122233 |
5 | 30333120404 |
6 | 3015101503 |
7 | 522260130 |
oct | 165243257 |
9 | 63774183 |
10 | 30754479 |
11 | 163a6328 |
12 | a371893 |
13 | 64aa522 |
14 | 4127c87 |
15 | 2a77689 |
hex | 1d546af |
30754479 has 32 divisors (see below), whose sum is σ = 49959936. Its totient is φ = 16427520.
The previous prime is 30754433. The next prime is 30754487. The reversal of 30754479 is 97445703.
It is not a de Polignac number, because 30754479 - 217 = 30623407 is a prime.
It is a super-2 number, since 2×307544792 = 1891675957122882, which contains 22 as substring.
It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30754429) by changing a digit.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 98734 + ... + 99044.
It is an arithmetic number, because the mean of its divisors is an integer number (1561248).
Almost surely, 230754479 is an apocalyptic number.
30754479 is a deficient number, since it is larger than the sum of its proper divisors (19205457).
30754479 is a wasteful number, since it uses less digits than its factorization.
30754479 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 615.
The product of its (nonzero) digits is 105840, while the sum is 39.
The square root of 30754479 is about 5545.6720963288. The cubic root of 30754479 is about 313.3065382499.
The spelling of 30754479 in words is "thirty million, seven hundred fifty-four thousand, four hundred seventy-nine".
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