Base | Representation |
---|---|
bin | 111010000110… |
… | …0100010110000 |
3 | 2010022112101010 |
4 | 1310030202300 |
5 | 30244210310 |
6 | 3004510520 |
7 | 516622620 |
oct | 164144260 |
9 | 63275333 |
10 | 30460080 |
11 | 16215122 |
12 | a24b440 |
13 | 6406521 |
14 | 408c880 |
15 | 2a1a320 |
hex | 1d0c8b0 |
30460080 has 80 divisors (see below), whose sum is σ = 107921664. Its totient is φ = 6961920.
The previous prime is 30460069. The next prime is 30460081. The reversal of 30460080 is 8006403.
It is a tau number, because it is divible by the number of its divisors (80).
It is a Harshad number since it is a multiple of its sum of digits (21).
It is not an unprimeable number, because it can be changed into a prime (30460081) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7386 + ... + 10745.
Almost surely, 230460080 is an apocalyptic number.
30460080 is a gapful number since it is divisible by the number (30) formed by its first and last digit.
It is an amenable number.
30460080 is an abundant number, since it is smaller than the sum of its proper divisors (77461584).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30460080 is a wasteful number, since it uses less digits than its factorization.
30460080 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 18154 (or 18148 counting only the distinct ones).
The product of its (nonzero) digits is 576, while the sum is 21.
The square root of 30460080 is about 5519.0651382277. The cubic root of 30460080 is about 312.3036163463.
Adding to 30460080 its reverse (8006403), we get a palindrome (38466483).
The spelling of 30460080 in words is "thirty million, four hundred sixty thousand, eighty".
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