Base | Representation |
---|---|
bin | 1000110101011… |
… | …00101000110000 |
3 | 12011110001022000 |
4 | 10122230220300 |
5 | 122432414230 |
6 | 11204214000 |
7 | 1556621451 |
oct | 432545060 |
9 | 164401260 |
10 | 74107440 |
11 | 38917020 |
12 | 2099a300 |
13 | 12479274 |
14 | 9bb1128 |
15 | 678cb60 |
hex | 46aca30 |
74107440 has 160 divisors (see below), whose sum is σ = 278553600. Its totient is φ = 17959680.
The previous prime is 74107417. The next prime is 74107469. The reversal of 74107440 is 4470147.
It is a Harshad number since it is a multiple of its sum of digits (27).
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 22201 + ... + 25319.
It is an arithmetic number, because the mean of its divisors is an integer number (1740960).
Almost surely, 274107440 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 74107440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (139276800).
74107440 is an abundant number, since it is smaller than the sum of its proper divisors (204446160).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
74107440 is a wasteful number, since it uses less digits than its factorization.
74107440 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 3152 (or 3140 counting only the distinct ones).
The product of its (nonzero) digits is 3136, while the sum is 27.
The square root of 74107440 is about 8608.5678251379. The cubic root of 74107440 is about 420.0367314814.
Adding to 74107440 its reverse (4470147), we get a palindrome (78577587).
It can be divided in two parts, 74107 and 440, that added together give a palindrome (74547).
The spelling of 74107440 in words is "seventy-four million, one hundred seven thousand, four hundred forty".
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