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10274221 = 35928619
BaseRepresentation
bin100111001100…
…010110101101
3201022222120201
4213030112231
510112233341
61004113501
7153220666
oct47142655
921288521
1010274221
1158881a1
123535891
132189629
14151636d
15d7e331
hex9cc5ad

10274221 has 4 divisors (see below), whose sum is σ = 10303200. Its totient is φ = 10245244.

The previous prime is 10274219. The next prime is 10274233. The reversal of 10274221 is 12247201.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 10274221 - 21 = 10274219 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10274281) 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 3 ways as a sum of consecutive naturals, for example, 13951 + ... + 14668.

It is an arithmetic number, because the mean of its divisors is an integer number (2575800).

Almost surely, 210274221 is an apocalyptic number.

It is an amenable number.

10274221 is a deficient number, since it is larger than the sum of its proper divisors (28979).

10274221 is an equidigital number, since it uses as much as digits as its factorization.

10274221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28978.

The product of its (nonzero) digits is 224, while the sum is 19.

The square root of 10274221 is about 3205.3425713955. The cubic root of 10274221 is about 217.3950416210.

The spelling of 10274221 in words is "ten million, two hundred seventy-four thousand, two hundred twenty-one".

Divisors: 1 359 28619 10274221