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10826221 = 73114973
BaseRepresentation
bin101001010011…
…000111101101
3202101000210011
4221103013231
510232414341
61024013221
7161010220
oct51230755
922330704
1010826221
11612499a
123761211
132320963
14161b5b7
15e3cb81
hexa531ed

10826221 has 8 divisors (see below), whose sum is σ = 12415104. Its totient is φ = 9247920.

The previous prime is 10826213. The next prime is 10826243. The reversal of 10826221 is 12262801.

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 10826221 - 23 = 10826213 is a prime.

It is a super-2 number, since 2×108262212 = 234414122281682, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10826192 and 10826201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10826201) 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, 310 + ... + 4663.

It is an arithmetic number, because the mean of its divisors is an integer number (1551888).

Almost surely, 210826221 is an apocalyptic number.

It is an amenable number.

10826221 is a deficient number, since it is larger than the sum of its proper divisors (1588883).

10826221 is an equidigital number, since it uses as much as digits as its factorization.

10826221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5291.

The product of its (nonzero) digits is 384, while the sum is 22.

The square root of 10826221 is about 3290.3223246363. The cubic root of 10826221 is about 221.2206323603.

The spelling of 10826221 in words is "ten million, eight hundred twenty-six thousand, two hundred twenty-one".

Divisors: 1 7 311 2177 4973 34811 1546603 10826221