Base | Representation |
---|---|
bin | 1000011100100… |
… | …01001000111000 |
3 | 11221022111200000 |
4 | 10032101020320 |
5 | 121114132310 |
6 | 11010313000 |
7 | 1520131041 |
oct | 416211070 |
9 | 157274600 |
10 | 70849080 |
11 | 36aa0a65 |
12 | 1b888760 |
13 | 118a8143 |
14 | 95a38c8 |
15 | 63474c0 |
hex | 4391238 |
70849080 has 192 divisors, whose sum is σ = 246486240. Its totient is φ = 18289152.
The previous prime is 70849067. The next prime is 70849099. The reversal of 70849080 is 8094807.
It is a Harshad number since it is a multiple of its sum of digits (36).
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 359542 + ... + 359738.
Almost surely, 270849080 is an apocalyptic number.
70849080 is the 4860-th octagonal number.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 70849080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (123243120).
70849080 is an abundant number, since it is smaller than the sum of its proper divisors (175637160).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
70849080 is a wasteful number, since it uses less digits than its factorization.
70849080 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 260 (or 244 counting only the distinct ones).
The product of its (nonzero) digits is 16128, while the sum is 36.
The square root of 70849080 is about 8417.1895547148. The cubic root of 70849080 is about 413.7881714067.
The spelling of 70849080 in words is "seventy million, eight hundred forty-nine thousand, eighty".
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