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10231021 = 231632729
BaseRepresentation
bin100111000001…
…110011101101
3201020210022201
4213001303231
510104343041
61003141501
7152651023
oct47016355
921223281
1010231021
115858799
123514891
132172a78
141504713
15d71631
hex9c1ced

10231021 has 8 divisors (see below), whose sum is σ = 10745280. Its totient is φ = 9722592.

The previous prime is 10231009. The next prime is 10231037. The reversal of 10231021 is 12013201.

10231021 = T314 + T315 + ... + T451.

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 10231021 - 25 = 10230989 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10230989 and 10231007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10231051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2385 + ... + 5113.

It is an arithmetic number, because the mean of its divisors is an integer number (1343160).

Almost surely, 210231021 is an apocalyptic number.

It is an amenable number.

10231021 is a deficient number, since it is larger than the sum of its proper divisors (514259).

10231021 is a wasteful number, since it uses less digits than its factorization.

10231021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2915.

The product of its (nonzero) digits is 12, while the sum is 10.

The square root of 10231021 is about 3198.5967235649. The cubic root of 10231021 is about 217.0899200488.

Adding to 10231021 its reverse (12013201), we get a palindrome (22244222).

The spelling of 10231021 in words is "ten million, two hundred thirty-one thousand, twenty-one".

Divisors: 1 23 163 2729 3749 62767 444827 10231021