Base | Representation |
---|---|
bin | 1001001101001111… |
… | …0000000000100000 |
3 | 20101020102120001010 |
4 | 2103103300000200 |
5 | 20030141200003 |
6 | 1045123140520 |
7 | 115146535551 |
oct | 22323600040 |
9 | 6336376033 |
10 | 2471428128 |
11 | 1059069594 |
12 | 58b814740 |
13 | 305037510 |
14 | 196334328 |
15 | e6e85003 |
hex | 934f0020 |
2471428128 has 192 divisors, whose sum is σ = 7283146752. Its totient is φ = 728663040.
The previous prime is 2471428121. The next prime is 2471428133. The reversal of 2471428128 is 8218241742.
It is a super-2 number, since 2×24714281282 = 12215913983739168768, which contains 22 as substring.
It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors.
It is a Harshad number since it is a multiple of its sum of digits (39).
It is not an unprimeable number, because it can be changed into a prime (2471428121) 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, 4913125 + ... + 4913627.
It is an arithmetic number, because the mean of its divisors is an integer number (37933056).
Almost surely, 22471428128 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 2471428128, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3641573376).
2471428128 is an abundant number, since it is smaller than the sum of its proper divisors (4811718624).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
2471428128 is a wasteful number, since it uses less digits than its factorization.
2471428128 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 687 (or 679 counting only the distinct ones).
The product of its digits is 57344, while the sum is 39.
The square root of 2471428128 is about 49713.4602295998. The cubic root of 2471428128 is about 1352.0185856950.
The spelling of 2471428128 in words is "two billion, four hundred seventy-one million, four hundred twenty-eight thousand, one hundred twenty-eight".
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