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8989149 = 313832777
BaseRepresentation
bin100010010010…
…100111011101
3121220200210110
4202102213131
54300123044
6520400233
7136256301
oct42224735
917820713
108989149
11508a754
123016079
131b29730
14129dd01
15bc86b9
hex8929dd

8989149 has 16 divisors (see below), whose sum is σ = 13067712. Its totient is φ = 5463168.

The previous prime is 8989139. The next prime is 8989153. The reversal of 8989149 is 9419898.

8989149 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 8989149 - 24 = 8989133 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 8989098 and 8989107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8989139) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1849 + ... + 4625.

It is an arithmetic number, because the mean of its divisors is an integer number (816732).

Almost surely, 28989149 is an apocalyptic number.

It is an amenable number.

8989149 is a deficient number, since it is larger than the sum of its proper divisors (4078563).

8989149 is a wasteful number, since it uses less digits than its factorization.

8989149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2876.

The product of its digits is 186624, while the sum is 48.

The square root of 8989149 is about 2998.1909545591. The cubic root of 8989149 is about 207.9247524286.

The spelling of 8989149 in words is "eight million, nine hundred eighty-nine thousand, one hundred forty-nine".

Divisors: 1 3 13 39 83 249 1079 2777 3237 8331 36101 108303 230491 691473 2996383 8989149