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10665331 = 1392772
BaseRepresentation
bin101000101011…
…110101110011
3202001212002021
4220223311303
510212242311
61020332311
7156440155
oct50536563
922055067
1010665331
116025026
1236a4097
132295661
1415b8ad5
15e0a171
hexa2bd73

10665331 has 6 divisors (see below), whose sum is σ = 10780980. Its totient is φ = 10550376.

The previous prime is 10665329. The next prime is 10665337. The reversal of 10665331 is 13356601.

It is not a de Polignac number, because 10665331 - 21 = 10665329 is a prime.

It is a super-2 number, since 2×106653312 = 227498570679122, 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 = 10665296 and 10665305.

It is not an unprimeable number, because it can be changed into a prime (10665337) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 38365 + ... + 38641.

It is an arithmetic number, because the mean of its divisors is an integer number (1796830).

Almost surely, 210665331 is an apocalyptic number.

10665331 is the 1886-th hex number.

10665331 is a deficient number, since it is larger than the sum of its proper divisors (115649).

10665331 is an frugal number, since it uses more digits than its factorization.

10665331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 693 (or 416 counting only the distinct ones).

The product of its (nonzero) digits is 1620, while the sum is 25.

The square root of 10665331 is about 3265.7818359468. The cubic root of 10665331 is about 220.1192948049.

The spelling of 10665331 in words is "ten million, six hundred sixty-five thousand, three hundred thirty-one".

Divisors: 1 139 277 38503 76729 10665331