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8990451 = 321815519
BaseRepresentation
bin100010010010…
…111011110011
3121220202120200
4202102323303
54300143301
6520410243
7136263141
oct42227363
917822520
108990451
115090728
123016983
131b2a1c2
1412a0591
15bc8c86
hex892ef3

8990451 has 12 divisors (see below), whose sum is σ = 13060320. Its totient is φ = 5959440.

The previous prime is 8990441. The next prime is 8990459. The reversal of 8990451 is 1540998.

It is not a de Polignac number, because 8990451 - 214 = 8974067 is a prime.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

8990451 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (8990459) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1131 + ... + 4388.

It is an arithmetic number, because the mean of its divisors is an integer number (1088360).

Almost surely, 28990451 is an apocalyptic number.

8990451 is a deficient number, since it is larger than the sum of its proper divisors (4069869).

8990451 is a wasteful number, since it uses less digits than its factorization.

8990451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5706 (or 5703 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 36.

The square root of 8990451 is about 2998.4080776305. The cubic root of 8990451 is about 207.9347906409.

The spelling of 8990451 in words is "eight million, nine hundred ninety thousand, four hundred fifty-one".

Divisors: 1 3 9 181 543 1629 5519 16557 49671 998939 2996817 8990451