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12028841 = 111093531
BaseRepresentation
bin101101111000…
…101110101001
3211122010110122
4231320232221
511034410331
61105453025
7204146336
oct55705651
924563418
1012028841
1168764a0
124041175
132652176
14185198d
1510c917b
hexb78ba9

12028841 has 4 divisors (see below), whose sum is σ = 13122384. Its totient is φ = 10935300.

The previous prime is 12028829. The next prime is 12028847. The reversal of 12028841 is 14882021.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 12028841 - 218 = 11766697 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12028841.

It is not an unprimeable number, because it can be changed into a prime (12028847) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 546755 + ... + 546776.

It is an arithmetic number, because the mean of its divisors is an integer number (3280596).

Almost surely, 212028841 is an apocalyptic number.

12028841 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

12028841 is a deficient number, since it is larger than the sum of its proper divisors (1093543).

12028841 is a wasteful number, since it uses less digits than its factorization.

12028841 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1093542.

The product of its (nonzero) digits is 1024, while the sum is 26.

The square root of 12028841 is about 3468.2619566578. The cubic root of 12028841 is about 229.1261167849.

The spelling of 12028841 in words is "twelve million, twenty-eight thousand, eight hundred forty-one".

Divisors: 1 11 1093531 12028841