Base | Representation |
---|---|
bin | 111001011010… |
… | …1110110011100 |
3 | 2002122111021120 |
4 | 1302311312130 |
5 | 30201324423 |
6 | 2553130540 |
7 | 513613434 |
oct | 162656634 |
9 | 62574246 |
10 | 30104988 |
11 | 15aa2361 |
12 | a0b9a50 |
13 | 6310a04 |
14 | 3dd92c4 |
15 | 2999ee3 |
hex | 1cb5d9c |
30104988 has 48 divisors (see below), whose sum is σ = 73683456. Its totient is φ = 9555840.
The previous prime is 30104933. The next prime is 30104989. The reversal of 30104988 is 88940103.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30104989) 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, 20445 + ... + 21867.
It is an arithmetic number, because the mean of its divisors is an integer number (1535072).
Almost surely, 230104988 is an apocalyptic number.
It is an amenable number.
30104988 is an abundant number, since it is smaller than the sum of its proper divisors (43578468).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30104988 is a wasteful number, since it uses less digits than its factorization.
30104988 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1514 (or 1512 counting only the distinct ones).
The product of its (nonzero) digits is 6912, while the sum is 33.
The square root of 30104988 is about 5486.8012539184. The cubic root of 30104988 is about 311.0852976126.
The spelling of 30104988 in words is "thirty million, one hundred four thousand, nine hundred eighty-eight".
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