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BaseRepresentation
bin100110111110…
…010000101011
3201020001101120
4212332100223
510103411431
61002550323
7152560455
oct46762053
921201346
1010216491
11584888a
1235083a3
13216927c
1414dd2d5
15d6c196
hex9be42b

10216491 has 8 divisors (see below), whose sum is σ = 13637184. Its totient is φ = 6803400.

The previous prime is 10216457. The next prime is 10216513. The reversal of 10216491 is 19461201.

Adding to 10216491 its reverse (19461201), we get a palindrome (29677692).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 10216491 - 211 = 10214443 is a prime.

It is not an unprimeable number, because it can be changed into a prime (10216441) 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, 3180 + ... + 5526.

It is an arithmetic number, because the mean of its divisors is an integer number (1704648).

Almost surely, 210216491 is an apocalyptic number.

10216491 is a deficient number, since it is larger than the sum of its proper divisors (3420693).

10216491 is a wasteful number, since it uses less digits than its factorization.

10216491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3801.

The product of its (nonzero) digits is 432, while the sum is 24.

The square root of 10216491 is about 3196.3246080459. The cubic root of 10216491 is about 216.9871016706.

The spelling of 10216491 in words is "ten million, two hundred sixteen thousand, four hundred ninety-one".

Divisors: 1 3 1451 2347 4353 7041 3405497 10216491