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12042043 = 133129881
BaseRepresentation
bin101101111011…
…111100111011
3211122210120121
4231323330323
511040321133
61110034111
7204232666
oct55737473
924583517
1012042043
116885402
124048937
132658190
1418566dd
1510cd02d
hexb7bf3b

12042043 has 8 divisors (see below), whose sum is σ = 13387136. Its totient is φ = 10756800.

The previous prime is 12041999. The next prime is 12042053. The reversal of 12042043 is 34024021.

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 12042043 - 217 = 11910971 is a prime.

It is a super-2 number, since 2×120420432 = 290021599227698, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12042053) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14538 + ... + 15343.

It is an arithmetic number, because the mean of its divisors is an integer number (1673392).

Almost surely, 212042043 is an apocalyptic number.

12042043 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

12042043 is a deficient number, since it is larger than the sum of its proper divisors (1345093).

12042043 is a wasteful number, since it uses less digits than its factorization.

12042043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29925.

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 12042043 is about 3470.1646934980. The cubic root of 12042043 is about 229.2099103114.

Adding to 12042043 its reverse (34024021), we get a palindrome (46066064).

The spelling of 12042043 in words is "twelve million, forty-two thousand, forty-three".

Divisors: 1 13 31 403 29881 388453 926311 12042043