Base | Representation |
---|---|
bin | 11101010100011… |
… | …11010111100100 |
3 | 122010210202111011 |
4 | 32222033113210 |
5 | 1000431012040 |
6 | 40223352004 |
7 | 6044401054 |
oct | 1652172744 |
9 | 563722434 |
10 | 245954020 |
11 | 11691a994 |
12 | 6a452604 |
13 | 3bc56c30 |
14 | 24945564 |
15 | 168d53ea |
hex | ea8f5e4 |
245954020 has 48 divisors (see below), whose sum is σ = 557388720. Its totient is φ = 90625536.
The previous prime is 245954003. The next prime is 245954021. The reversal of 245954020 is 20459542.
It can be written as a sum of positive squares in 8 ways, for example, as 142850304 + 103103716 = 11952^2 + 10154^2 .
It is not an unprimeable number, because it can be changed into a prime (245954021) 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, 221226 + ... + 222334.
It is an arithmetic number, because the mean of its divisors is an integer number (11612265).
Almost surely, 2245954020 is an apocalyptic number.
245954020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.
It is an amenable number.
245954020 is an abundant number, since it is smaller than the sum of its proper divisors (311434700).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
245954020 is a wasteful number, since it uses less digits than its factorization.
245954020 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1984 (or 1982 counting only the distinct ones).
The product of its (nonzero) digits is 14400, while the sum is 31.
The square root of 245954020 is about 15682.9212839955. The cubic root of 245954020 is about 626.5436148664.
The spelling of 245954020 in words is "two hundred forty-five million, nine hundred fifty-four thousand, twenty".
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