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12042971 = 412391229
BaseRepresentation
bin101101111100…
…001011011011
3211122211211222
4231330023123
511040333341
61110042255
7204235463
oct55741333
924584758
1012042971
116886076
12404938b
132658725
141856ba3
1510cd44b
hexb7c2db

12042971 has 8 divisors (see below), whose sum is σ = 12398400. Its totient is φ = 11690560.

The previous prime is 12042931. The next prime is 12042983. The reversal of 12042971 is 17924021.

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 12042971 - 26 = 12042907 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12042971.

It is not an unprimeable number, because it can be changed into a prime (12042931) 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, 9185 + ... + 10413.

It is an arithmetic number, because the mean of its divisors is an integer number (1549800).

Almost surely, 212042971 is an apocalyptic number.

12042971 is a deficient number, since it is larger than the sum of its proper divisors (355429).

12042971 is a wasteful number, since it uses less digits than its factorization.

12042971 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1509.

The product of its (nonzero) digits is 1008, while the sum is 26.

The square root of 12042971 is about 3470.2984021551. The cubic root of 12042971 is about 229.2157980536.

Adding to 12042971 its reverse (17924021), we get a palindrome (29966992).

The spelling of 12042971 in words is "twelve million, forty-two thousand, nine hundred seventy-one".

Divisors: 1 41 239 1229 9799 50389 293731 12042971