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1080215 = 5375839
BaseRepresentation
bin100000111101110010111
32000212202222
410013232113
5234031330
635052555
712116213
oct4075627
92025688
101080215
11678644
1244115b
132ba8a6
14201943
151650e5
hex107b97

1080215 has 8 divisors (see below), whose sum is σ = 1331520. Its totient is φ = 840672.

The previous prime is 1080199. The next prime is 1080217. The reversal of 1080215 is 5120801.

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 1080215 - 24 = 1080199 is a prime.

It is a super-3 number, since 3×10802153 = 3781393433336815125, which contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1080193 and 1080202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1080217) 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, 2735 + ... + 3104.

It is an arithmetic number, because the mean of its divisors is an integer number (166440).

21080215 is an apocalyptic number.

1080215 is a deficient number, since it is larger than the sum of its proper divisors (251305).

1080215 is an equidigital number, since it uses as much as digits as its factorization.

1080215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5881.

The product of its (nonzero) digits is 80, while the sum is 17.

The square root of 1080215 is about 1039.3339213169. Note that the first 3 decimals coincide. The cubic root of 1080215 is about 102.6053645864.

The spelling of 1080215 in words is "one million, eighty thousand, two hundred fifteen".

Divisors: 1 5 37 185 5839 29195 216043 1080215