Base | Representation |
---|---|
bin | 111010110010… |
… | …1010000111101 |
3 | 2010222222212120 |
4 | 1311211100331 |
5 | 30342322420 |
6 | 3020353153 |
7 | 522665250 |
oct | 165452075 |
9 | 63888776 |
10 | 30823485 |
11 | 16443160 |
12 | a3a57b9 |
13 | 6502a64 |
14 | 4145097 |
15 | 2a8cd40 |
hex | 1d6543d |
30823485 has 32 divisors (see below), whose sum is σ = 61489152. Its totient is φ = 12809280.
The previous prime is 30823439. The next prime is 30823489. The reversal of 30823485 is 58432803.
It is not a de Polignac number, because 30823485 - 26 = 30823421 is a prime.
It is a Harshad number since it is a multiple of its sum of digits (33).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30823489) by changing a digit.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12189 + ... + 14498.
It is an arithmetic number, because the mean of its divisors is an integer number (1921536).
Almost surely, 230823485 is an apocalyptic number.
30823485 is a gapful number since it is divisible by the number (35) formed by its first and last digit.
It is an amenable number.
30823485 is a deficient number, since it is larger than the sum of its proper divisors (30665667).
30823485 is a wasteful number, since it uses less digits than its factorization.
30823485 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 26713.
The product of its (nonzero) digits is 23040, while the sum is 33.
The square root of 30823485 is about 5551.8902186553. The cubic root of 30823485 is about 313.5406925549.
The spelling of 30823485 in words is "thirty million, eight hundred twenty-three thousand, four hundred eighty-five".
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