Base | Representation |
---|---|
bin | 1000010011101… |
… | …00000011111011 |
3 | 11212010011220201 |
4 | 10021310003323 |
5 | 120314301103 |
6 | 10525303031 |
7 | 1504165531 |
oct | 411640373 |
9 | 155104821 |
10 | 69681403 |
11 | 36373740 |
12 | 1b404a77 |
13 | 115897cc |
14 | 937c151 |
15 | 61b651d |
hex | 42740fb |
69681403 has 8 divisors (see below), whose sum is σ = 78637680. Its totient is φ = 61162080.
The previous prime is 69681383. The next prime is 69681413. The reversal of 69681403 is 30418696.
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 69681403 - 213 = 69673211 is a prime.
It is not an unprimeable number, because it can be changed into a prime (69681413) by changing a digit.
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 7 ways as a sum of consecutive naturals, for example, 108900 + ... + 109537.
It is an arithmetic number, because the mean of its divisors is an integer number (9829710).
Almost surely, 269681403 is an apocalyptic number.
69681403 is a deficient number, since it is larger than the sum of its proper divisors (8956277).
69681403 is a wasteful number, since it uses less digits than its factorization.
69681403 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 218477.
The product of its (nonzero) digits is 31104, while the sum is 37.
The square root of 69681403 is about 8347.5387390536. The cubic root of 69681403 is about 411.5023270194.
It can be divided in two parts, 69 and 681403, that added together give a cube (681472 = 883).
The spelling of 69681403 in words is "sixty-nine million, six hundred eighty-one thousand, four hundred three".
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