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12042481 = 114723293
BaseRepresentation
bin101101111100…
…000011110001
3211122211011211
4231330003301
511040324411
61110040121
7204234163
oct55740361
924584154
1012042481
116885770
124049041
132658439
141856933
1510cd221
hexb7c0f1

12042481 has 8 divisors (see below), whose sum is σ = 13417344. Its totient is φ = 10714320.

The previous prime is 12042469. The next prime is 12042491. The reversal of 12042481 is 18424021.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12042481 - 25 = 12042449 is a prime.

It is a super-2 number, since 2×120424812 = 290042697270722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12042421) 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 7 ways as a sum of consecutive naturals, for example, 11130 + ... + 12163.

It is an arithmetic number, because the mean of its divisors is an integer number (1677168).

Almost surely, 212042481 is an apocalyptic number.

12042481 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

12042481 is a deficient number, since it is larger than the sum of its proper divisors (1374863).

12042481 is a wasteful number, since it uses less digits than its factorization.

12042481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23351.

The product of its (nonzero) digits is 512, while the sum is 22.

The square root of 12042481 is about 3470.2278023208. The cubic root of 12042481 is about 229.2126892619.

The spelling of 12042481 in words is "twelve million, forty-two thousand, four hundred eighty-one".

Divisors: 1 11 47 517 23293 256223 1094771 12042481