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7940283 = 313732789
BaseRepresentation
bin11110010010100010111011
3112221102000120
4132102202323
54013042113
6442104323
7124330341
oct36224273
915842016
107940283
11453371a
1227ab0a3
1318501c0
1410a9991
15a6ca23
hex7928bb

7940283 has 16 divisors (see below), whose sum is σ = 11561760. Its totient is φ = 4817664.

The previous prime is 7940269. The next prime is 7940293. The reversal of 7940283 is 3820497.

7940283 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 7940283 - 210 = 7939259 is a prime.

7940283 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (7940243) 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 15 ways as a sum of consecutive naturals, for example, 1453 + ... + 4241.

It is an arithmetic number, because the mean of its divisors is an integer number (722610).

Almost surely, 27940283 is an apocalyptic number.

7940283 is a gapful number since it is divisible by the number (73) formed by its first and last digit.

7940283 is a deficient number, since it is larger than the sum of its proper divisors (3621477).

7940283 is a wasteful number, since it uses less digits than its factorization.

7940283 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2878.

The product of its (nonzero) digits is 12096, while the sum is 33.

The square root of 7940283 is about 2817.8507767446. The cubic root of 7940283 is about 199.5011149365.

The spelling of 7940283 in words is "seven million, nine hundred forty thousand, two hundred eighty-three".

Divisors: 1 3 13 39 73 219 949 2789 2847 8367 36257 108771 203597 610791 2646761 7940283