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8469993 = 372157367
BaseRepresentation
bin100000010011…
…110111101001
3120221022122110
4200103313221
54132014433
6501312533
7131664600
oct40236751
916838573
108469993
1148656a4
122a05749
1319a733c
1411a6a37
15b24963
hex813de9

8469993 has 24 divisors (see below), whose sum is σ = 13256832. Its totient is φ = 4796064.

The previous prime is 8469977. The next prime is 8469997. The reversal of 8469993 is 3999648.

It is a happy number.

8469993 is digitally balanced in base 2, base 4 and base 8, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 8469993 - 24 = 8469977 is a prime.

8469993 is strictly pandigital in base 8.

8469993 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (8469997) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 22896 + ... + 23262.

It is an arithmetic number, because the mean of its divisors is an integer number (552368).

Almost surely, 28469993 is an apocalyptic number.

It is an amenable number.

8469993 is a deficient number, since it is larger than the sum of its proper divisors (4786839).

8469993 is a wasteful number, since it uses less digits than its factorization.

8469993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 541 (or 534 counting only the distinct ones).

The product of its digits is 419904, while the sum is 48.

The square root of 8469993 is about 2910.3252395566. The cubic root of 8469993 is about 203.8423185593.

The spelling of 8469993 in words is "eight million, four hundred sixty-nine thousand, nine hundred ninety-three".

Divisors: 1 3 7 21 49 147 157 367 471 1099 1101 2569 3297 7693 7707 17983 23079 53949 57619 172857 403333 1209999 2823331 8469993