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9986666 = 219262807
BaseRepresentation
bin100110000110…
…001001101010
3200210101010112
4212012021222
510024033131
6554014322
7150612434
oct46061152
920711115
109986666
115701148
1234173a2
1320b8791
14147d654
15d2402b
hex98626a

9986666 has 8 divisors (see below), whose sum is σ = 15768480. Its totient is φ = 4730508.

The previous prime is 9986659. The next prime is 9986693. The reversal of 9986666 is 6666899.

It is a sphenic number, since it is the product of 3 distinct primes.

9986666 is a modest number, since divided by 6666 gives 998 as remainder.

It is a nialpdrome in base 10.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 131366 + ... + 131441.

It is an arithmetic number, because the mean of its divisors is an integer number (1971060).

Almost surely, 29986666 is an apocalyptic number.

9986666 is a deficient number, since it is larger than the sum of its proper divisors (5781814).

9986666 is a wasteful number, since it uses less digits than its factorization.

9986666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 262828.

The product of its digits is 839808, while the sum is 50.

The square root of 9986666 is about 3160.1686663848. The cubic root of 9986666 is about 215.3476689701.

The spelling of 9986666 in words is "nine million, nine hundred eighty-six thousand, six hundred sixty-six".

Divisors: 1 2 19 38 262807 525614 4993333 9986666