Base | Representation |
---|---|
bin | 1000011101010… |
… | …00110001100000 |
3 | 11221111102110111 |
4 | 10032220301200 |
5 | 121130232023 |
6 | 11012341104 |
7 | 1521013216 |
oct | 416506140 |
9 | 157442414 |
10 | 70945888 |
11 | 37057772 |
12 | 1b914794 |
13 | 11910220 |
14 | 95cacb6 |
15 | 636600d |
hex | 43a8c60 |
70945888 has 48 divisors (see below), whose sum is σ = 151351200. Its totient is φ = 32541696.
The previous prime is 70945877. The next prime is 70945891. The reversal of 70945888 is 88854907.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 82356 + ... + 83212.
It is an arithmetic number, because the mean of its divisors is an integer number (3153150).
Almost surely, 270945888 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 70945888, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (75675600).
70945888 is an abundant number, since it is smaller than the sum of its proper divisors (80405312).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
70945888 is a wasteful number, since it uses less digits than its factorization.
70945888 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1079 (or 1071 counting only the distinct ones).
The product of its (nonzero) digits is 645120, while the sum is 49.
The square root of 70945888 is about 8422.9382046884. The cubic root of 70945888 is about 413.9765519949.
The spelling of 70945888 in words is "seventy million, nine hundred forty-five thousand, eight hundred eighty-eight".
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