Base | Representation |
---|---|
bin | 1000010111100… |
… | …00011001100000 |
3 | 11220002001112010 |
4 | 10023300121200 |
5 | 120432100223 |
6 | 10544232520 |
7 | 1511416401 |
oct | 413603140 |
9 | 156061463 |
10 | 70190688 |
11 | 36691337 |
12 | 1b60b740 |
13 | 11707569 |
14 | 94719a8 |
15 | 6267393 |
hex | 42f0660 |
70190688 has 96 divisors (see below), whose sum is σ = 200037600. Its totient is φ = 21463040.
The previous prime is 70190669. The next prime is 70190699. The reversal of 70190688 is 88609107.
It is a tau number, because it is divible by the number of its divisors (96).
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 66388 + ... + 67436.
It is an arithmetic number, because the mean of its divisors is an integer number (2083725).
Almost surely, 270190688 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 70190688, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (100018800).
70190688 is an abundant number, since it is smaller than the sum of its proper divisors (129846912).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
70190688 is a wasteful number, since it uses less digits than its factorization.
With its predecessor (70190687) it forms an eRAP, since the sums of their prime factors are consecutive (1119 and 1120).
With its predecessor (70190687) it forms a Ruth-Aaron pair, since the sum of their distinct prime factors is the same (1112).
70190688 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1120 (or 1112 counting only the distinct ones).
The product of its (nonzero) digits is 24192, while the sum is 39.
The square root of 70190688 is about 8377.9883026894. The cubic root of 70190688 is about 412.5024190859.
The spelling of 70190688 in words is "seventy million, one hundred ninety thousand, six hundred eighty-eight".
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