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12200866 = 2172411489
BaseRepresentation
bin101110100010…
…101110100010
3211221212102221
4232202232202
511110411431
61113301254
7205464016
oct56425642
924855387
1012200866
116983767
12410482a
1326b2562
141898546
151110111
hexba2ba2

12200866 has 16 divisors (see below), whose sum is σ = 19471320. Its totient is φ = 5713920.

The previous prime is 12200857. The next prime is 12200897. The reversal of 12200866 is 66800221.

12200866 is nontrivially palindromic in base 15.

12200866 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 11363641 + 837225 = 3371^2 + 915^2 .

It is a super-2 number, since 2×122008662 = 297722262299912, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 12200866.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7450 + ... + 8938.

Almost surely, 212200866 is an apocalyptic number.

12200866 is a deficient number, since it is larger than the sum of its proper divisors (7270454).

12200866 is a wasteful number, since it uses less digits than its factorization.

12200866 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1749.

The product of its (nonzero) digits is 1152, while the sum is 25.

The square root of 12200866 is about 3492.9738046541. The cubic root of 12200866 is about 230.2131986596.

The spelling of 12200866 in words is "twelve million, two hundred thousand, eight hundred sixty-six".

Divisors: 1 2 17 34 241 482 1489 2978 4097 8194 25313 50626 358849 717698 6100433 12200866