Base | Representation |
---|---|
bin | 110000001000001… |
… | …010001110000100 |
3 | 2002021100110211110 |
4 | 300020022032010 |
5 | 3123201223010 |
6 | 212042205020 |
7 | 26003113110 |
oct | 6010121604 |
9 | 2067313743 |
10 | 807445380 |
11 | 384866735 |
12 | 1a64b3770 |
13 | cb38ba41 |
14 | 79346740 |
15 | 4ad48120 |
hex | 3020a384 |
807445380 has 96 divisors (see below), whose sum is σ = 2612977920. Its totient is φ = 182476800.
The previous prime is 807445367. The next prime is 807445393. The reversal of 807445380 is 83544708.
It is an interprime number because it is at equal distance from previous prime (807445367) and next prime (807445393).
It is an unprimeable number.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 26580 + ... + 48180.
It is an arithmetic number, because the mean of its divisors is an integer number (27218520).
Almost surely, 2807445380 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 807445380, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1306488960).
807445380 is an abundant number, since it is smaller than the sum of its proper divisors (1805532540).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
807445380 is a wasteful number, since it uses less digits than its factorization.
807445380 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 21709 (or 21707 counting only the distinct ones).
The product of its (nonzero) digits is 107520, while the sum is 39.
The square root of 807445380 is about 28415.5834006624. The cubic root of 807445380 is about 931.1887446458.
The spelling of 807445380 in words is "eight hundred seven million, four hundred forty-five thousand, three hundred eighty".
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