Base | Representation |
---|---|
bin | 1010011110100010… |
… | …1110011000111000 |
3 | 21021000011022200200 |
4 | 2213220232120320 |
5 | 21224443031330 |
6 | 1143025002200 |
7 | 126460415304 |
oct | 24750563070 |
9 | 7230138620 |
10 | 2812470840 |
11 | 1213625a73 |
12 | 665a83360 |
13 | 35a8a563a |
14 | 1c974cd04 |
15 | 116d9ea60 |
hex | a7a2e638 |
2812470840 has 96 divisors (see below), whose sum is σ = 9151552800. Its totient is φ = 749088000.
The previous prime is 2812470821. The next prime is 2812470851. The reversal of 2812470840 is 480742182.
2812470840 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
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 = 2812470795 and 2812470804.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 326590 + ... + 335090.
It is an arithmetic number, because the mean of its divisors is an integer number (95328675).
Almost surely, 22812470840 is an apocalyptic number.
2812470840 is a gapful number since it is divisible by the number (20) formed by its first and last digit.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 2812470840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4575776400).
2812470840 is an abundant number, since it is smaller than the sum of its proper divisors (6339081960).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
2812470840 is a wasteful number, since it uses less digits than its factorization.
2812470840 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 9437 (or 9430 counting only the distinct ones).
The product of its (nonzero) digits is 28672, while the sum is 36.
The square root of 2812470840 is about 53032.7336651619. The cubic root of 2812470840 is about 1411.5491649739.
The spelling of 2812470840 in words is "two billion, eight hundred twelve million, four hundred seventy thousand, eight hundred forty".
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