Base | Representation |
---|---|
bin | 1000010111111… |
… | …10011000100001 |
3 | 11220011222002122 |
4 | 10023332120201 |
5 | 120440413334 |
6 | 10545354025 |
7 | 1512045401 |
oct | 413763041 |
9 | 156158078 |
10 | 70247969 |
11 | 36720380 |
12 | 1b638915 |
13 | 1172765c |
14 | 9488801 |
15 | 627932e |
hex | 42fe621 |
70247969 has 8 divisors (see below), whose sum is σ = 76698912. Its totient is φ = 63807840.
The previous prime is 70247951. The next prime is 70247971. The reversal of 70247969 is 96974207.
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 70247969 - 28 = 70247713 is a prime.
It is a super-2 number, since 2×702479692 = 9869554297249922, which contains 22 as substring.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (70247909) 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, 17462 + ... + 21104.
It is an arithmetic number, because the mean of its divisors is an integer number (9587364).
Almost surely, 270247969 is an apocalyptic number.
It is an amenable number.
70247969 is a deficient number, since it is larger than the sum of its proper divisors (6450943).
70247969 is a wasteful number, since it uses less digits than its factorization.
70247969 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 5407.
The product of its (nonzero) digits is 190512, while the sum is 44.
The square root of 70247969 is about 8381.4061469422. The cubic root of 70247969 is about 412.6145998090.
The spelling of 70247969 in words is "seventy million, two hundred forty-seven thousand, nine hundred sixty-nine".
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