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12042303 = 371344111
BaseRepresentation
bin101101111100…
…000000111111
3211122210221020
4231330000333
511040323203
61110035223
7204233520
oct55740077
924583836
1012042303
116885619
124048b13
132658330
141856847
1510cd153
hexb7c03f

12042303 has 16 divisors (see below), whose sum is σ = 19762176. Its totient is φ = 6351840.

The previous prime is 12042301. The next prime is 12042311. The reversal of 12042303 is 30324021.

It is not a de Polignac number, because 12042303 - 21 = 12042301 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12042301) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21783 + ... + 22328.

It is an arithmetic number, because the mean of its divisors is an integer number (1235136).

Almost surely, 212042303 is an apocalyptic number.

12042303 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

12042303 is a deficient number, since it is larger than the sum of its proper divisors (7719873).

12042303 is a wasteful number, since it uses less digits than its factorization.

12042303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44134.

The product of its (nonzero) digits is 144, while the sum is 15.

The square root of 12042303 is about 3470.2021554947. The cubic root of 12042303 is about 229.2115599249.

Adding to 12042303 its reverse (30324021), we get a palindrome (42366324).

The spelling of 12042303 in words is "twelve million, forty-two thousand, three hundred three".

Divisors: 1 3 7 13 21 39 91 273 44111 132333 308777 573443 926331 1720329 4014101 12042303