Base | Representation |
---|---|
bin | 11101001110001… |
… | …110100111011000 |
3 | 1021011112020211110 |
4 | 131032032213120 |
5 | 2001002103034 |
6 | 120352100320 |
7 | 15102135051 |
oct | 3516164730 |
9 | 1234466743 |
10 | 490269144 |
11 | 231820512 |
12 | 1182346a0 |
13 | 7a758bb1 |
14 | 49181728 |
15 | 2d094de9 |
hex | 1d38e9d8 |
490269144 has 64 divisors (see below), whose sum is σ = 1284877440. Its totient is φ = 155715840.
The previous prime is 490269121. The next prime is 490269163. The reversal of 490269144 is 441962094.
It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 36519 + ... + 48105.
It is an arithmetic number, because the mean of its divisors is an integer number (20076210).
Almost surely, 2490269144 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 490269144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (642438720).
490269144 is an abundant number, since it is smaller than the sum of its proper divisors (794608296).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
490269144 is a wasteful number, since it uses less digits than its factorization.
490269144 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 11680 (or 11676 counting only the distinct ones).
The product of its (nonzero) digits is 62208, while the sum is 39.
The square root of 490269144 is about 22142.0221298778. The cubic root of 490269144 is about 788.5178341093.
The spelling of 490269144 in words is "four hundred ninety million, two hundred sixty-nine thousand, one hundred forty-four".
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