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10475221 = 67715473
BaseRepresentation
bin100111111101…
…011011010101
3201201012022011
4213331123111
510140201341
61012304221
7155016001
oct47753325
921635264
1010475221
115a05209
123612071
132229c73
141569701
15dbdb81
hex9fd6d5

10475221 has 4 divisors (see below), whose sum is σ = 10491372. Its totient is φ = 10459072.

The previous prime is 10475209. The next prime is 10475239. The reversal of 10475221 is 12257401.

It is a happy number.

10475221 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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 8328996 + 2146225 = 2886^2 + 1465^2 .

It is a cyclic number.

It is not a de Polignac number, because 10475221 - 27 = 10475093 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10475192 and 10475201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10479221) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7060 + ... + 8413.

It is an arithmetic number, because the mean of its divisors is an integer number (2622843).

Almost surely, 210475221 is an apocalyptic number.

It is an amenable number.

10475221 is a deficient number, since it is larger than the sum of its proper divisors (16151).

10475221 is an equidigital number, since it uses as much as digits as its factorization.

10475221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16150.

The product of its (nonzero) digits is 560, while the sum is 22.

The square root of 10475221 is about 3236.5446080658. The cubic root of 10475221 is about 218.8035671808.

The spelling of 10475221 in words is "ten million, four hundred seventy-five thousand, two hundred twenty-one".

Divisors: 1 677 15473 10475221