Base | Representation |
---|---|
bin | 1000010110110… |
… | …11101110000000 |
3 | 11212220202022221 |
4 | 10023123232000 |
5 | 120421342414 |
6 | 10542340424 |
7 | 1510614424 |
oct | 413335600 |
9 | 155822287 |
10 | 70105984 |
11 | 36633733 |
12 | 1b58a714 |
13 | 116a7b40 |
14 | 944cb84 |
15 | 624c224 |
hex | 42dbb80 |
70105984 has 32 divisors (see below), whose sum is σ = 150411240. Its totient is φ = 32355840.
The previous prime is 70105967. The next prime is 70106017. The reversal of 70105984 is 48950107.
It is a happy number.
It is a tau number, because it is divible by the number of its divisors (32).
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19402 + ... + 22729.
Almost surely, 270105984 is an apocalyptic number.
It is an amenable number.
70105984 is an abundant number, since it is smaller than the sum of its proper divisors (80305256).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
70105984 is a wasteful number, since it uses less digits than its factorization.
70105984 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 42158 (or 42146 counting only the distinct ones).
The product of its (nonzero) digits is 10080, while the sum is 34.
The square root of 70105984 is about 8372.9316251836. The cubic root of 70105984 is about 412.3364204783.
The spelling of 70105984 in words is "seventy million, one hundred five thousand, nine hundred eighty-four".
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