Base | Representation |
---|---|
bin | 100000101010011111… |
… | …0001011110010100100 |
3 | 20201001112022110102001 |
4 | 1001110332023302210 |
5 | 2122124114022400 |
6 | 52120232055044 |
7 | 5032155131026 |
oct | 1012476136244 |
9 | 221045273361 |
10 | 70145064100 |
11 | 27826072961 |
12 | 11717534484 |
13 | 67cb5089b7 |
14 | 3575db8016 |
15 | 1c58217a6a |
hex | 1054f8bca4 |
70145064100 has 72 divisors (see below), whose sum is σ = 152782674408. Its totient is φ = 27953587200.
The previous prime is 70145064083. The next prime is 70145064107. The reversal of 70145064100 is 146054107.
It can be written as a sum of positive squares in 12 ways, for example, as 67032316836 + 3112747264 = 258906^2 + 55792^2 .
It is not an unprimeable number, because it can be changed into a prime (70145064107) 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 23 ways as a sum of consecutive naturals, for example, 40289230 + ... + 40290970.
It is an arithmetic number, because the mean of its divisors is an integer number (2121981589).
Almost surely, 270145064100 is an apocalyptic number.
It is an amenable number.
70145064100 is an abundant number, since it is smaller than the sum of its proper divisors (82637610308).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
70145064100 is a wasteful number, since it uses less digits than its factorization.
70145064100 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 3025 (or 3018 counting only the distinct ones).
The product of its (nonzero) digits is 3360, while the sum is 28.
The spelling of 70145064100 in words is "seventy billion, one hundred forty-five million, sixty-four thousand, one hundred".
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