Base | Representation |
---|---|
bin | 1101001010110110… |
… | …11001011100001100 |
3 | 200020202012000202100 |
4 | 12211123121130030 |
5 | 103440004440103 |
6 | 3125330555100 |
7 | 340132216002 |
oct | 64533313414 |
9 | 20222160670 |
10 | 7070390028 |
11 | 2aa9061749 |
12 | 1453a38a90 |
13 | 888a80150 |
14 | 4b1040a72 |
15 | 2b5ac05a3 |
hex | 1a56d970c |
7070390028 has 72 divisors (see below), whose sum is σ = 19257519008. Its totient is φ = 2174335488.
The previous prime is 7070390011. The next prime is 7070390081. The reversal of 7070390028 is 8200930707.
It is a Harshad number since it is a multiple of its sum of digits (36).
It is a junction number, because it is equal to n+sod(n) for n = 7070389974 and 7070390001.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1348500 + ... + 1353732.
Almost surely, 27070390028 is an apocalyptic number.
7070390028 is a gapful number since it is divisible by the number (78) formed by its first and last digit.
It is an amenable number.
7070390028 is an abundant number, since it is smaller than the sum of its proper divisors (12187128980).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
7070390028 is a wasteful number, since it uses less digits than its factorization.
7070390028 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 8143 (or 8138 counting only the distinct ones).
The product of its (nonzero) digits is 21168, while the sum is 36.
The square root of 7070390028 is about 84085.6113018155. The cubic root of 7070390028 is about 1919.3217754248.
The spelling of 7070390028 in words is "seven billion, seventy million, three hundred ninety thousand, twenty-eight".
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