Base | Representation |
---|---|
bin | 111001101011… |
… | …0100011011001 |
3 | 2002220022000122 |
4 | 1303112203121 |
5 | 30220121222 |
6 | 3000043025 |
7 | 515012111 |
oct | 163264331 |
9 | 62808018 |
10 | 30238937 |
11 | 16083a63 |
12 | a163475 |
13 | 6359981 |
14 | 4032041 |
15 | 29c4a42 |
hex | 1cd68d9 |
30238937 has 12 divisors (see below), whose sum is σ = 33819120. Its totient is φ = 26957376.
The previous prime is 30238931. The next prime is 30238939. The reversal of 30238937 is 73983203.
It is not a de Polignac number, because 30238937 - 24 = 30238921 is a prime.
It is a hoax number, since the sum of its digits (35) coincides with the sum of the digits of its distinct prime factors.
It is a junction number, because it is equal to n+sod(n) for n = 30238897 and 30238906.
It is not an unprimeable number, because it can be changed into a prime (30238931) by changing a digit.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2738 + ... + 8244.
It is an arithmetic number, because the mean of its divisors is an integer number (2818260).
Almost surely, 230238937 is an apocalyptic number.
It is an amenable number.
30238937 is a deficient number, since it is larger than the sum of its proper divisors (3580183).
30238937 is a wasteful number, since it uses less digits than its factorization.
30238937 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 5560 (or 5543 counting only the distinct ones).
The product of its (nonzero) digits is 27216, while the sum is 35.
The square root of 30238937 is about 5498.9941807571. The cubic root of 30238937 is about 311.5459955251.
The spelling of 30238937 in words is "thirty million, two hundred thirty-eight thousand, nine hundred thirty-seven".
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