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10638271 = 71979987
BaseRepresentation
bin101000100101…
…001110111111
3202000110222001
4220211032333
510210411041
61020003131
7156265240
oct50451677
922013861
1010638271
116006766
1236904a7
132286247
1415accc7
15e02131
hexa253bf

10638271 has 8 divisors (see below), whose sum is σ = 12798080. Its totient is φ = 8638488.

The previous prime is 10638269. The next prime is 10638283. The reversal of 10638271 is 17283601.

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 10638271 - 21 = 10638269 is a prime.

It is a super-2 number, since 2×106382712 = 226345619738882, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10638241) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39861 + ... + 40126.

It is an arithmetic number, because the mean of its divisors is an integer number (1599760).

Almost surely, 210638271 is an apocalyptic number.

10638271 is a deficient number, since it is larger than the sum of its proper divisors (2159809).

10638271 is an equidigital number, since it uses as much as digits as its factorization.

10638271 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80013.

The product of its (nonzero) digits is 2016, while the sum is 28.

The square root of 10638271 is about 3261.6362458128. The cubic root of 10638271 is about 219.9329754503.

The spelling of 10638271 in words is "ten million, six hundred thirty-eight thousand, two hundred seventy-one".

Divisors: 1 7 19 133 79987 559909 1519753 10638271