Base | Representation |
---|---|
bin | 111010111100000… |
… | …000010011110101 |
3 | 2112220121200011201 |
4 | 322330000103311 |
5 | 4011113332222 |
6 | 242041332501 |
7 | 33334506301 |
oct | 7274002365 |
9 | 2486550151 |
10 | 988808437 |
11 | 46817a461 |
12 | 237197131 |
13 | 129b1c166 |
14 | 95476d01 |
15 | 5bc20427 |
hex | 3af004f5 |
988808437 has 2 divisors, whose sum is σ = 988808438. Its totient is φ = 988808436.
The previous prime is 988808413. The next prime is 988808473. The reversal of 988808437 is 734808889.
988808437 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is the 12838-th star number.
Together with next prime (988808473) it forms an Ormiston pair, because they use the same digits, order apart.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 855036081 + 133772356 = 29241^2 + 11566^2 .
It is an emirp because it is prime and its reverse (734808889) is a distict prime.
It is a cyclic number.
It is not a de Polignac number, because 988808437 - 27 = 988808309 is a prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (988808497) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 494404218 + 494404219.
It is an arithmetic number, because the mean of its divisors is an integer number (494404219).
Almost surely, 2988808437 is an apocalyptic number.
It is an amenable number.
988808437 is a deficient number, since it is larger than the sum of its proper divisors (1).
988808437 is an equidigital number, since it uses as much as digits as its factorization.
988808437 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 3096576, while the sum is 55.
The square root of 988808437 is about 31445.3245650287. The cubic root of 988808437 is about 996.2554750340.
The spelling of 988808437 in words is "nine hundred eighty-eight million, eight hundred eight thousand, four hundred thirty-seven".
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