Base | Representation |
---|---|
bin | 11110010100001… |
… | …11101001101100 |
3 | 122201112100010200 |
4 | 33022013221230 |
5 | 1010100423040 |
6 | 41122433500 |
7 | 6205415355 |
oct | 1712075154 |
9 | 581470120 |
10 | 254311020 |
11 | 1206086a7 |
12 | 71202890 |
13 | 408c19c2 |
14 | 25abcd2c |
15 | 174d6630 |
hex | f287a6c |
254311020 has 72 divisors (see below), whose sum is σ = 778298976. Its totient is φ = 67210752.
The previous prime is 254310997. The next prime is 254311091. The reversal of 254311020 is 20113452.
It is a Harshad number since it is a multiple of its sum of digits (18).
It is a junction number, because it is equal to n+sod(n) for n = 254310984 and 254311002.
It is an unprimeable number.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 14089 + ... + 26591.
It is an arithmetic number, because the mean of its divisors is an integer number (10809708).
Almost surely, 2254311020 is an apocalyptic number.
254311020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 254311020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (389149488).
254311020 is an abundant number, since it is smaller than the sum of its proper divisors (523987956).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
254311020 is a wasteful number, since it uses less digits than its factorization.
254311020 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 12631 (or 12626 counting only the distinct ones).
The product of its (nonzero) digits is 240, while the sum is 18.
The square root of 254311020 is about 15947.1320305565. The cubic root of 254311020 is about 633.5609382006.
Adding to 254311020 its reverse (20113452), we get a palindrome (274424472).
The spelling of 254311020 in words is "two hundred fifty-four million, three hundred eleven thousand, twenty".
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