Base | Representation |
---|---|
bin | 111010000011… |
… | …0011010011010 |
3 | 2010021020221010 |
4 | 1310012122122 |
5 | 30242404340 |
6 | 3004154350 |
7 | 516456456 |
oct | 164063232 |
9 | 63236833 |
10 | 30434970 |
11 | 161a8275 |
12 | a2389b6 |
13 | 63c7c77 |
14 | 4083666 |
15 | 2a12b80 |
hex | 1d0669a |
30434970 has 32 divisors (see below), whose sum is σ = 74745792. Its totient is φ = 7926912.
The previous prime is 30434959. The next prime is 30435001. The reversal of 30434970 is 7943403.
It is a Harshad number since it is a multiple of its sum of digits (30).
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, 10507 + ... + 13086.
It is an arithmetic number, because the mean of its divisors is an integer number (2335806).
Almost surely, 230434970 is an apocalyptic number.
30434970 is a gapful number since it is divisible by the number (30) formed by its first and last digit.
30434970 is an abundant number, since it is smaller than the sum of its proper divisors (44310822).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30434970 is a wasteful number, since it uses less digits than its factorization.
30434970 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 23646.
The product of its (nonzero) digits is 9072, while the sum is 30.
The square root of 30434970 is about 5516.7898274268. The cubic root of 30434970 is about 312.2177761291.
The spelling of 30434970 in words is "thirty million, four hundred thirty-four thousand, nine hundred seventy".
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