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7988293 is a prime number
BaseRepresentation
bin11110011110010001000101
3120000211212201
4132132101011
54021111133
6443114501
7124620325
oct36362105
916024781
107988293
1145667a5
122812a31
131869001
1410bd285
15a7bd7d
hex79e445

7988293 has 2 divisors, whose sum is σ = 7988294. Its totient is φ = 7988292.

The previous prime is 7988273. The next prime is 7988339. The reversal of 7988293 is 3928897.

7988293 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an a-pointer prime, because the next prime (7988339) can be obtained adding 7988293 to its sum of digits (46).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5963364 + 2024929 = 2442^2 + 1423^2 .

It is a cyclic number.

It is not a de Polignac number, because 7988293 - 29 = 7987781 is a prime.

It is an Ulam number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7988203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3994146 + 3994147.

It is an arithmetic number, because the mean of its divisors is an integer number (3994147).

Almost surely, 27988293 is an apocalyptic number.

It is an amenable number.

7988293 is a deficient number, since it is larger than the sum of its proper divisors (1).

7988293 is an equidigital number, since it uses as much as digits as its factorization.

7988293 is an evil number, because the sum of its binary digits is even.

The product of its digits is 217728, while the sum is 46.

The square root of 7988293 is about 2826.3568422972. The cubic root of 7988293 is about 199.9023940398.

It can be divided in two parts, 7988 and 293, that added together give a square (8281 = 912).

The spelling of 7988293 in words is "seven million, nine hundred eighty-eight thousand, two hundred ninety-three".