Base | Representation |
---|---|
bin | 1001100001100000… |
… | …1011110101001100 |
3 | 20121011110110211000 |
4 | 2120120023311030 |
5 | 20213424223443 |
6 | 1101402100300 |
7 | 120231456660 |
oct | 23030136514 |
9 | 6534413730 |
10 | 2556476748 |
11 | 10a2078901 |
12 | 5b41aa690 |
13 | 319844847 |
14 | 1a37528a0 |
15 | ee6848d3 |
hex | 9860bd4c |
2556476748 has 96 divisors (see below), whose sum is σ = 7620480000. Its totient is φ = 726012288.
The previous prime is 2556476743. The next prime is 2556476753. The reversal of 2556476748 is 8476746552.
It is a happy number.
2556476748 is a `hidden beast` number, since 2 + 5 + 564 + 7 + 6 + 74 + 8 = 666.
It is an interprime number because it is at equal distance from previous prime (2556476743) and next prime (2556476753).
It is a Harshad number since it is a multiple of its sum of digits (54).
It is a junction number, because it is equal to n+sod(n) for n = 2556476694 and 2556476703.
It is not an unprimeable number, because it can be changed into a prime (2556476743) by changing a digit.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 116128 + ... + 136376.
It is an arithmetic number, because the mean of its divisors is an integer number (79380000).
Almost surely, 22556476748 is an apocalyptic number.
2556476748 is a gapful number since it is divisible by the number (28) 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 2556476748, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3810240000).
2556476748 is an abundant number, since it is smaller than the sum of its proper divisors (5064003252).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
2556476748 is a wasteful number, since it uses less digits than its factorization.
2556476748 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 20436 (or 20428 counting only the distinct ones).
The product of its digits is 11289600, while the sum is 54.
The square root of 2556476748 is about 50561.6133840684. The cubic root of 2556476748 is about 1367.3528987840.
The spelling of 2556476748 in words is "two billion, five hundred fifty-six million, four hundred seventy-six thousand, seven hundred forty-eight".
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