Base | Representation |
---|---|
bin | 1000111011111… |
… | …11001010010100 |
3 | 12020001212011100 |
4 | 10131333022110 |
5 | 123143012443 |
6 | 11234510100 |
7 | 1600142460 |
oct | 435771224 |
9 | 166055140 |
10 | 74969748 |
11 | 39355977 |
12 | 21135330 |
13 | 126bb8c9 |
14 | 9d574a0 |
15 | 68ad3d3 |
hex | 477f294 |
74969748 has 72 divisors (see below), whose sum is σ = 218883392. Its totient is φ = 21192192.
The previous prime is 74969743. The next prime is 74969753. The reversal of 74969748 is 84796947.
It is a happy number.
It is an interprime number because it is at equal distance from previous prime (74969743) and next prime (74969753).
It is a junction number, because it is equal to n+sod(n) for n = 74969694 and 74969703.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (74969743) by changing a digit.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 22911 + ... + 25977.
Almost surely, 274969748 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 74969748, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (109441696).
74969748 is an abundant number, since it is smaller than the sum of its proper divisors (143913644).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
74969748 is a wasteful number, since it uses less digits than its factorization.
74969748 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 3181 (or 3176 counting only the distinct ones).
The product of its digits is 3048192, while the sum is 54.
The square root of 74969748 is about 8658.5072616474. The cubic root of 74969748 is about 421.6596238589.
The spelling of 74969748 in words is "seventy-four million, nine hundred sixty-nine thousand, seven hundred forty-eight".
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