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10080421 = 13775417
BaseRepresentation
bin100110011101…
…000010100101
3200222010201221
4212131002211
510040033141
61000020341
7151452661
oct46350245
920863657
1010080421
11576562a
1234616b1
13211c360
1414a58a1
15d41bd1
hex99d0a5

10080421 has 4 divisors (see below), whose sum is σ = 10855852. Its totient is φ = 9304992.

The previous prime is 10080403. The next prime is 10080437. The reversal of 10080421 is 12408001.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3189796 + 6890625 = 1786^2 + 2625^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-10080421 is a prime.

It is a super-2 number, since 2×100804212 = 203229775074482, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10080395 and 10080404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10080401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 387696 + ... + 387721.

It is an arithmetic number, because the mean of its divisors is an integer number (2713963).

Almost surely, 210080421 is an apocalyptic number.

It is an amenable number.

10080421 is a deficient number, since it is larger than the sum of its proper divisors (775431).

10080421 is an equidigital number, since it uses as much as digits as its factorization.

10080421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 775430.

The product of its (nonzero) digits is 64, while the sum is 16.

The square root of 10080421 is about 3174.9678738532. The cubic root of 10080421 is about 216.0194669812.

Adding to 10080421 its reverse (12408001), we get a palindrome (22488422).

It can be divided in two parts, 10080 and 421, that added together give a palindrome (10501).

The spelling of 10080421 in words is "ten million, eighty thousand, four hundred twenty-one".

Divisors: 1 13 775417 10080421