Base | Representation |
---|---|
bin | 1000010110010… |
… | …01011010000000 |
3 | 11212202221102212 |
4 | 10023021122000 |
5 | 120411442401 |
6 | 10541001252 |
7 | 1510152641 |
oct | 413113200 |
9 | 155687385 |
10 | 70030976 |
11 | 36592344 |
12 | 1b553228 |
13 | 1167c962 |
14 | 942d6c8 |
15 | 6234dbb |
hex | 42c9680 |
70030976 has 32 divisors (see below), whose sum is σ = 140922180. Its totient is φ = 34662400.
The previous prime is 70030963. The next prime is 70030981. The reversal of 70030976 is 67903007.
It can be written as a sum of positive squares in 2 ways, for example, as 69889600 + 141376 = 8360^2 + 376^2 .
It is a tau number, because it is divible by the number of its divisors (32).
It is a Harshad number since it is a multiple of its sum of digits (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, 10220 + ... + 15636.
Almost surely, 270030976 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 70030976, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (70461090).
70030976 is an abundant number, since it is smaller than the sum of its proper divisors (70891204).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
70030976 is a wasteful number, since it uses less digits than its factorization.
70030976 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 5532 (or 5520 counting only the distinct ones).
The product of its (nonzero) digits is 7938, while the sum is 32.
The square root of 70030976 is about 8368.4512306639. The cubic root of 70030976 is about 412.1893119368.
The spelling of 70030976 in words is "seventy million, thirty thousand, nine hundred seventy-six".
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