Base | Representation |
---|---|
bin | 1101110110110000100 |
3 | 212001210120 |
4 | 1232312010 |
5 | 104012040 |
6 | 13421540 |
7 | 3600450 |
oct | 1566604 |
9 | 761716 |
10 | 454020 |
11 | 290126 |
12 | 19a8b0 |
13 | 12b868 |
14 | bb660 |
15 | 8e7d0 |
hex | 6ed84 |
454020 has 96 divisors (see below), whose sum is σ = 1548288. Its totient is φ = 97152.
The previous prime is 454009. The next prime is 454021. The reversal of 454020 is 20454.
454020 = T203 + T204 + ... + T222.
454020 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.
It is a super-2 number, since 2×4540202 = 412268320800, which contains 22 as substring.
It is a Harshad number since it is a multiple of its sum of digits (15).
It is an Ulam number.
It is a nialpdrome in base 14.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (454021) by changing a digit.
454020 is an untouchable number, because it is not equal to the sum of proper divisors of any number.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9637 + ... + 9683.
It is an arithmetic number, because the mean of its divisors is an integer number (16128).
2454020 is an apocalyptic number.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 454020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (774144).
454020 is an abundant number, since it is smaller than the sum of its proper divisors (1094268).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
454020 is a wasteful number, since it uses less digits than its factorization.
454020 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 89 (or 87 counting only the distinct ones).
The product of its (nonzero) digits is 160, while the sum is 15.
The square root of 454020 is about 673.8100622579. The cubic root of 454020 is about 76.8584570127.
Adding to 454020 its reverse (20454), we get a palindrome (474474).
It can be divided in two parts, 4540 and 20, that added together give a triangular number (4560 = T95).
The spelling of 454020 in words is "four hundred fifty-four thousand, twenty".
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