Base | Representation |
---|---|
bin | 1000111011111… |
… | …10111101110101 |
3 | 12020001211001202 |
4 | 10131332331311 |
5 | 123143001244 |
6 | 11234502245 |
7 | 1600140236 |
oct | 435767565 |
9 | 166054052 |
10 | 74968949 |
11 | 39355310 |
12 | 21134985 |
13 | 126bb433 |
14 | 9d5708d |
15 | 68ad04e |
hex | 477ef75 |
74968949 has 8 divisors (see below), whose sum is σ = 81913248. Its totient is φ = 68046160.
The previous prime is 74968921. The next prime is 74968969. The reversal of 74968949 is 94986947.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 74968949 - 28 = 74968693 is a prime.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 74968894 and 74968903.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (74968969) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2414 + ... + 12480.
It is an arithmetic number, because the mean of its divisors is an integer number (10239156).
Almost surely, 274968949 is an apocalyptic number.
It is an amenable number.
74968949 is a deficient number, since it is larger than the sum of its proper divisors (6944299).
74968949 is a wasteful number, since it uses less digits than its factorization.
74968949 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 10755.
The product of its digits is 3919104, while the sum is 56.
The square root of 74968949 is about 8658.4611219315. The cubic root of 74968949 is about 421.6581258891.
The spelling of 74968949 in words is "seventy-four million, nine hundred sixty-eight thousand, nine hundred forty-nine".
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