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12442827 = 3172947179
BaseRepresentation
bin101111011101…
…110011001011
3212102011100110
4233131303023
511141132302
61122405403
7210522315
oct57356313
925364313
1012442827
117029531
124200863
132768727
14191c7b5
15115bb6c
hexbddccb

12442827 has 32 divisors (see below), whose sum is σ = 18662400. Its totient is φ = 7336448.

The previous prime is 12442817. The next prime is 12442847. The reversal of 12442827 is 72824421.

It is a cyclic number.

It is not a de Polignac number, because 12442827 - 26 = 12442763 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12442794 and 12442803.

It is not an unprimeable number, because it can be changed into a prime (12442817) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 69424 + ... + 69602.

It is an arithmetic number, because the mean of its divisors is an integer number (583200).

Almost surely, 212442827 is an apocalyptic number.

12442827 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

12442827 is a deficient number, since it is larger than the sum of its proper divisors (6219573).

12442827 is a wasteful number, since it uses less digits than its factorization.

12442827 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 275.

The product of its digits is 7168, while the sum is 30.

The square root of 12442827 is about 3527.4391561018. The cubic root of 12442827 is about 231.7250694384.

The spelling of 12442827 in words is "twelve million, four hundred forty-two thousand, eight hundred twenty-seven".

Divisors: 1 3 17 29 47 51 87 141 179 493 537 799 1363 1479 2397 3043 4089 5191 8413 9129 15573 23171 25239 69513 88247 143021 243977 264741 429063 731931 4147609 12442827