Base | Representation |
---|---|
bin | 111010001000… |
… | …0000101111111 |
3 | 2010100021022202 |
4 | 1310100011333 |
5 | 30300141443 |
6 | 3005102115 |
7 | 520013204 |
oct | 164200577 |
9 | 63307282 |
10 | 30474623 |
11 | 16225043 |
12 | a25793b |
13 | 641002a |
14 | 4093cab |
15 | 2a1e7b8 |
hex | 1d1017f |
30474623 has 4 divisors (see below), whose sum is σ = 30634368. Its totient is φ = 30314880.
The previous prime is 30474617. The next prime is 30474667. The reversal of 30474623 is 32647403.
It is a happy number.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 32647403 = 4919 ⋅6637.
It is a cyclic number.
It is not a de Polignac number, because 30474623 - 24 = 30474607 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30474673) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 79586 + ... + 79967.
It is an arithmetic number, because the mean of its divisors is an integer number (7658592).
Almost surely, 230474623 is an apocalyptic number.
30474623 is a deficient number, since it is larger than the sum of its proper divisors (159745).
30474623 is a wasteful number, since it uses less digits than its factorization.
30474623 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 159744.
The product of its (nonzero) digits is 12096, while the sum is 29.
The square root of 30474623 is about 5520.3825048632. The cubic root of 30474623 is about 312.3533109942.
The spelling of 30474623 in words is "thirty million, four hundred seventy-four thousand, six hundred twenty-three".
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