Base | Representation |
---|---|
bin | 1000011101011… |
… | …11010011111101 |
3 | 11221112210012101 |
4 | 10032233103331 |
5 | 121132111134 |
6 | 11013105101 |
7 | 1521154255 |
oct | 416572375 |
9 | 157483171 |
10 | 70972669 |
11 | 370758a9 |
12 | 1b928191 |
13 | 1191c481 |
14 | 95d6965 |
15 | 636de14 |
hex | 43af4fd |
70972669 has 8 divisors (see below), whose sum is σ = 71892800. Its totient is φ = 70056576.
The previous prime is 70972651. The next prime is 70972709. The reversal of 70972669 is 96627907.
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 70972669 - 29 = 70972157 is a prime.
It is a super-2 number, since 2×709726692 = 10074239489967122, which contains 22 as substring.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (70972639) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50032 + ... + 51430.
It is an arithmetic number, because the mean of its divisors is an integer number (8986600).
Almost surely, 270972669 is an apocalyptic number.
It is an amenable number.
70972669 is a deficient number, since it is larger than the sum of its proper divisors (920131).
70972669 is a wasteful number, since it uses less digits than its factorization.
70972669 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 2019.
The product of its (nonzero) digits is 285768, while the sum is 46.
The square root of 70972669 is about 8424.5278205962. The cubic root of 70972669 is about 414.0286354049.
The spelling of 70972669 in words is "seventy million, nine hundred seventy-two thousand, six hundred sixty-nine".
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