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8073040 = 245100913
BaseRepresentation
bin11110110010111101010000
3120012011010111
4132302331100
54031314130
6445011104
7125422363
oct36627520
916164114
108073040
114614438
122853a94
131898761
1411020da
15a9702a
hex7b2f50

8073040 has 20 divisors (see below), whose sum is σ = 18770004. Its totient is φ = 3229184.

The previous prime is 8073001. The next prime is 8073041. The reversal of 8073040 is 403708.

It can be written as a sum of positive squares in 2 ways, for example, as 976144 + 7096896 = 988^2 + 2664^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8073041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 50377 + ... + 50536.

Almost surely, 28073040 is an apocalyptic number.

8073040 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

8073040 is an abundant number, since it is smaller than the sum of its proper divisors (10696964).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8073040 is a wasteful number, since it uses less digits than its factorization.

8073040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100926 (or 100920 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 22.

The square root of 8073040 is about 2841.3095572288. The cubic root of 8073040 is about 200.6068236300.

Adding to 8073040 its reverse (403708), we get a palindrome (8476748).

The spelling of 8073040 in words is "eight million, seventy-three thousand, forty".

Divisors: 1 2 4 5 8 10 16 20 40 80 100913 201826 403652 504565 807304 1009130 1614608 2018260 4036520 8073040