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12303057 = 3131671889
BaseRepresentation
bin101110111011…
…101011010001
3212011001121210
4232323223101
511122144212
61115410333
7206400654
oct56735321
925131553
1012303057
116a43518
1241539a9
132719c20
1418c389b
15113053c
hexbbbad1

12303057 has 16 divisors (see below), whose sum is σ = 17781120. Its totient is φ = 7521792.

The previous prime is 12303043. The next prime is 12303059. The reversal of 12303057 is 75030321.

It is a happy number.

It is not a de Polignac number, because 12303057 - 212 = 12298961 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12303059) 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, 5569 + ... + 7457.

It is an arithmetic number, because the mean of its divisors is an integer number (1111320).

Almost surely, 212303057 is an apocalyptic number.

It is an amenable number.

12303057 is a deficient number, since it is larger than the sum of its proper divisors (5478063).

12303057 is a wasteful number, since it uses less digits than its factorization.

12303057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2072.

The product of its (nonzero) digits is 630, while the sum is 21.

The square root of 12303057 is about 3507.5713820249. The cubic root of 12303057 is about 230.8541460408.

Adding to 12303057 its reverse (75030321), we get a palindrome (87333378).

The spelling of 12303057 in words is "twelve million, three hundred three thousand, fifty-seven".

Divisors: 1 3 13 39 167 501 1889 2171 5667 6513 24557 73671 315463 946389 4101019 12303057