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10412021 = 89116989
BaseRepresentation
bin100111101101…
…111111110101
3201120222121102
4213231333311
510131141041
61011055445
7154333514
oct47557765
921528542
1010412021
115971784
1235a1585
132207279
14155067b
15daa09b
hex9edff5

10412021 has 4 divisors (see below), whose sum is σ = 10529100. Its totient is φ = 10294944.

The previous prime is 10411997. The next prime is 10412027. The reversal of 10412021 is 12021401.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 12021401 = 71717343.

It can be written as a sum of positive squares in 2 ways, for example, as 7349521 + 3062500 = 2711^2 + 1750^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-10412021 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 10411993 and 10412011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10412027) 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, 58406 + ... + 58583.

It is an arithmetic number, because the mean of its divisors is an integer number (2632275).

Almost surely, 210412021 is an apocalyptic number.

It is an amenable number.

10412021 is a deficient number, since it is larger than the sum of its proper divisors (117079).

10412021 is an equidigital number, since it uses as much as digits as its factorization.

10412021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117078.

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

The square root of 10412021 is about 3226.7663379923. The cubic root of 10412021 is about 218.3626444471.

Adding to 10412021 its reverse (12021401), we get a palindrome (22433422).

The spelling of 10412021 in words is "ten million, four hundred twelve thousand, twenty-one".

Divisors: 1 89 116989 10412021