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8990668 = 226136847
BaseRepresentation
bin100010010010…
…111111001100
3121220202212201
4202102333030
54300200133
6520411244
7136263601
oct42227714
917822781
108990668
115090905
123016b24
131b2a32b
1412a06a8
15bc8d7d
hex892fcc

8990668 has 12 divisors (see below), whose sum is σ = 15992032. Its totient is φ = 4421520.

The previous prime is 8990623. The next prime is 8990669. The reversal of 8990668 is 8660998.

It is a happy number.

8990668 is nontrivially palindromic in base 11.

8990668 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×89906682 = 161664222172448, which contains 22 as substring.

8990668 is a strobogrammatic number because it is the same when read upside-down.

It is not an unprimeable number, because it can be changed into a prime (8990669) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18180 + ... + 18667.

Almost surely, 28990668 is an apocalyptic number.

It is an amenable number.

8990668 is a deficient number, since it is larger than the sum of its proper divisors (7001364).

8990668 is a wasteful number, since it uses less digits than its factorization.

8990668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36912 (or 36910 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 46.

The square root of 8990668 is about 2998.4442632805. Note that the first 3 decimals coincide. The cubic root of 8990668 is about 207.9364635821.

The spelling of 8990668 in words is "eight million, nine hundred ninety thousand, six hundred sixty-eight".

Divisors: 1 2 4 61 122 244 36847 73694 147388 2247667 4495334 8990668