Base | Representation |
---|---|
bin | 1000011010001… |
… | …01001110010010 |
3 | 11220201201010100 |
4 | 10031011032102 |
5 | 121024210010 |
6 | 10555513230 |
7 | 1514364345 |
oct | 415051622 |
9 | 156651110 |
10 | 70538130 |
11 | 368a9383 |
12 | 1b758816 |
13 | 117c9750 |
14 | 952245c |
15 | 62d52c0 |
hex | 4345392 |
70538130 has 48 divisors (see below), whose sum is σ = 197510040. Its totient is φ = 17362944.
The previous prime is 70538123. The next prime is 70538159. The reversal of 70538130 is 3183507.
It can be written as a sum of positive squares in 4 ways, for example, as 19686969 + 50851161 = 4437^2 + 7131^2 .
It is a Curzon number.
It is a junction number, because it is equal to n+sod(n) for n = 70538094 and 70538103.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 28975 + ... + 31314.
Almost surely, 270538130 is an apocalyptic number.
70538130 is an abundant number, since it is smaller than the sum of its proper divisors (126971910).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
70538130 is a wasteful number, since it uses less digits than its factorization.
70538130 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 60315 (or 60312 counting only the distinct ones).
The product of its (nonzero) digits is 2520, while the sum is 27.
The square root of 70538130 is about 8398.6981133983. The cubic root of 70538130 is about 413.1819243970.
The spelling of 70538130 in words is "seventy million, five hundred thirty-eight thousand, one hundred thirty".
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