Base | Representation |
---|---|
bin | 11110001011000… |
… | …10010011010100 |
3 | 122122021021220110 |
4 | 33011202103110 |
5 | 1004244000320 |
6 | 41041003020 |
7 | 6162252312 |
oct | 1705422324 |
9 | 578237813 |
10 | 253109460 |
11 | 11a96797a |
12 | 70923470 |
13 | 40590b16 |
14 | 258890b2 |
15 | 1734a5e0 |
hex | f1624d4 |
253109460 has 48 divisors (see below), whose sum is σ = 711922176. Its totient is φ = 67189632.
The previous prime is 253109453. The next prime is 253109473. The reversal of 253109460 is 64901352.
It is a Harshad number since it is a multiple of its sum of digits (30).
It is a congruent number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3922 + ... + 22838.
It is an arithmetic number, because the mean of its divisors is an integer number (14831712).
Almost surely, 2253109460 is an apocalyptic number.
253109460 is a gapful number since it is divisible by the number (20) formed by its first and last digit.
It is an amenable number.
253109460 is an abundant number, since it is smaller than the sum of its proper divisors (458812716).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
253109460 is a wasteful number, since it uses less digits than its factorization.
253109460 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 19152 (or 19150 counting only the distinct ones).
The product of its (nonzero) digits is 6480, while the sum is 30.
The square root of 253109460 is about 15909.4141941179. The cubic root of 253109460 is about 632.5615535819.
The spelling of 253109460 in words is "two hundred fifty-three million, one hundred nine thousand, four hundred sixty".
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