Base | Representation |
---|---|
bin | 100000110011110000… |
… | …0100011110110000000 |
3 | 20201212012111222000000 |
4 | 1001213200203312000 |
5 | 2123243223043113 |
6 | 52211142000000 |
7 | 5042652450261 |
oct | 1014740436600 |
9 | 221765458000 |
10 | 70456065408 |
11 | 27975680833 |
12 | 117a3716000 |
13 | 684aa89041 |
14 | 35a5412968 |
15 | 1c7569b373 |
hex | 1067823d80 |
70456065408 has 224 divisors, whose sum is σ = 216144597360. Its totient is φ = 22849496064.
The previous prime is 70456065401. The next prime is 70456065409. The reversal of 70456065408 is 80456065407.
70456065408 is a `hidden beast` number, since 7 + 0 + 45 + 60 + 6 + 540 + 8 = 666.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (70456065401) by changing a digit.
It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 3442341 + ... + 3462747.
Almost surely, 270456065408 is an apocalyptic number.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 70456065408, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (108072298680).
70456065408 is an abundant number, since it is smaller than the sum of its proper divisors (145688531952).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
70456065408 is an equidigital number, since it uses as much as digits as its factorization.
70456065408 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 20476 (or 20449 counting only the distinct ones).
The product of its (nonzero) digits is 806400, while the sum is 45.
Subtracting 70456065408 from its reverse (80456065407), we obtain a palindrome (9999999999).
The spelling of 70456065408 in words is "seventy billion, four hundred fifty-six million, sixty-five thousand, four hundred eight".
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