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12410021 = 1319471069
BaseRepresentation
bin101111010101…
…110010100101
3212100111100102
4233111302211
511134110041
61121553445
7210324551
oct57256245
925314312
1012410021
117006918
1241a5885
132756810
141910861
15115209b
hexbd5ca5

12410021 has 16 divisors (see below), whose sum is σ = 14380800. Its totient is φ = 10611648.

The previous prime is 12410011. The next prime is 12410029. The reversal of 12410021 is 12001421.

It is a cyclic number.

It is not a de Polignac number, because 12410021 - 222 = 8215717 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12409984 and 12410011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12410029) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11075 + ... + 12143.

It is an arithmetic number, because the mean of its divisors is an integer number (898800).

Almost surely, 212410021 is an apocalyptic number.

It is an amenable number.

12410021 is a deficient number, since it is larger than the sum of its proper divisors (1970779).

12410021 is a wasteful number, since it uses less digits than its factorization.

12410021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1148.

The product of its (nonzero) digits is 16, while the sum is 11.

The square root of 12410021 is about 3522.7859713585. The cubic root of 12410021 is about 231.5212394621.

Adding to 12410021 its reverse (12001421), we get a palindrome (24411442).

The spelling of 12410021 in words is "twelve million, four hundred ten thousand, twenty-one".

Divisors: 1 13 19 47 247 611 893 1069 11609 13897 20311 50243 264043 653159 954617 12410021