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8840493 = 321757781
BaseRepresentation
bin100001101110…
…010100101101
3121122010212200
4201232110231
54230343433
6513252113
7135100014
oct41562455
917563780
108840493
114a98aa2
122b64039
131aa6b7c
141261a7b
15b99613
hex86e52d

8840493 has 12 divisors (see below), whose sum is σ = 13520988. Its totient is φ = 5546880.

The previous prime is 8840477. The next prime is 8840497. The reversal of 8840493 is 3940488.

8840493 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 6985449 + 1855044 = 2643^2 + 1362^2 .

It is not a de Polignac number, because 8840493 - 24 = 8840477 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8840497) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 28738 + ... + 29043.

It is an arithmetic number, because the mean of its divisors is an integer number (1126749).

Almost surely, 28840493 is an apocalyptic number.

It is an amenable number.

8840493 is a deficient number, since it is larger than the sum of its proper divisors (4680495).

8840493 is a wasteful number, since it uses less digits than its factorization.

8840493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57804 (or 57801 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 36.

The square root of 8840493 is about 2973.2966552297. The cubic root of 8840493 is about 206.7722061823.

The spelling of 8840493 in words is "eight million, eight hundred forty thousand, four hundred ninety-three".

Divisors: 1 3 9 17 51 153 57781 173343 520029 982277 2946831 8840493