Base | Representation |
---|---|
bin | 110000000110111… |
… | …100011110010010 |
3 | 2002020202022000000 |
4 | 300012330132102 |
5 | 3123111030210 |
6 | 212031310430 |
7 | 26000315511 |
oct | 6006743622 |
9 | 2066668000 |
10 | 807126930 |
11 | 384669455 |
12 | 1a637b416 |
13 | cb2a9acc |
14 | 792a2678 |
15 | 4acd3ac0 |
hex | 301bc792 |
807126930 has 112 divisors (see below), whose sum is σ = 2220407640. Its totient is φ = 211071744.
The previous prime is 807126919. The next prime is 807126953. The reversal of 807126930 is 39621708.
It can be written as a sum of positive squares in 4 ways, for example, as 793041921 + 14085009 = 28161^2 + 3753^2 .
It is a super-2 number, since 2×8071269302 = 1302907762262449800, which contains 22 as substring.
It is an unprimeable number.
It is a polite number, since it can be written in 55 ways as a sum of consecutive naturals, for example, 385326 + ... + 387414.
Almost surely, 2807126930 is an apocalyptic number.
It is a practical number, because each smaller number is the sum of distinct divisors of 807126930, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1110203820).
807126930 is an abundant number, since it is smaller than the sum of its proper divisors (1413280710).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
807126930 is a wasteful number, since it uses less digits than its factorization.
807126930 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2167 (or 2152 counting only the distinct ones).
The product of its (nonzero) digits is 18144, while the sum is 36.
The square root of 807126930 is about 28409.9794086515. The cubic root of 807126930 is about 931.0663107510.
The spelling of 807126930 in words is "eight hundred seven million, one hundred twenty-six thousand, nine hundred thirty".
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