Base | Representation |
---|---|
bin | 1000011001001… |
… | …01011110010000 |
3 | 11220111002201200 |
4 | 10030211132100 |
5 | 121011024310 |
6 | 10553031200 |
7 | 1513313241 |
oct | 414453620 |
9 | 156432650 |
10 | 70408080 |
11 | 3681a6a6 |
12 | 1b6b5500 |
13 | 117824b2 |
14 | 94cacc8 |
15 | 62ab9c0 |
hex | 4325790 |
70408080 has 60 divisors (see below), whose sum is σ = 236456220. Its totient is φ = 18775296.
The previous prime is 70408057. The next prime is 70408103. The reversal of 70408080 is 8080407.
It is a happy number.
It is an interprime number because it is at equal distance from previous prime (70408057) and next prime (70408103).
It can be written as a sum of positive squares in 2 ways, for example, as 30869136 + 39538944 = 5556^2 + 6288^2 .
It is a tau number, because it is divible by the number of its divisors (60).
70408080 is a modest number, since divided by 8080 gives 7040 as remainder.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 48175 + ... + 49614.
It is an arithmetic number, because the mean of its divisors is an integer number (3940937).
Almost surely, 270408080 is an apocalyptic number.
It is an amenable number.
70408080 is an abundant number, since it is smaller than the sum of its proper divisors (166048140).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
70408080 is a wasteful number, since it uses less digits than its factorization.
70408080 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 97808 (or 97799 counting only the distinct ones).
The product of its (nonzero) digits is 1792, while the sum is 27.
The square root of 70408080 is about 8390.9522701538. The cubic root of 70408080 is about 412.9278425921.
Adding to 70408080 its reverse (8080407), we get a palindrome (78488487).
The spelling of 70408080 in words is "seventy million, four hundred eight thousand, eighty".
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