Base | Representation |
---|---|
bin | 1000010101110… |
… | …10101000011011 |
3 | 11212122212102111 |
4 | 10022322220123 |
5 | 120403023314 |
6 | 10535413151 |
7 | 1506511336 |
oct | 412725033 |
9 | 155585374 |
10 | 69970459 |
11 | 36550929 |
12 | 1b5241b7 |
13 | 1165b250 |
14 | 941561d |
15 | 6221ec4 |
hex | 42baa1b |
69970459 has 8 divisors (see below), whose sum is σ = 75594960. Its totient is φ = 64380576.
The previous prime is 69970349. The next prime is 69970471. The reversal of 69970459 is 95407996.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 69970459 - 29 = 69969947 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (69970489) 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, 4369 + ... + 12610.
It is an arithmetic number, because the mean of its divisors is an integer number (9449370).
Almost surely, 269970459 is an apocalyptic number.
69970459 is a deficient number, since it is larger than the sum of its proper divisors (5624501).
69970459 is a wasteful number, since it uses less digits than its factorization.
69970459 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 17309.
The product of its (nonzero) digits is 612360, while the sum is 49.
The square root of 69970459 is about 8364.8346666267. The cubic root of 69970459 is about 412.0705471145.
The spelling of 69970459 in words is "sixty-nine million, nine hundred seventy thousand, four hundred fifty-nine".
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