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28989162 = 2324873307
BaseRepresentation
bin110111010010…
…1011011101010
32000112210122200
41232211123222
524410123122
62513201030
7501255336
oct156453352
960483580
1028989162
11153aaa94
129860176
13600cb67
143bc87c6
1528295ac
hex1ba56ea

28989162 has 24 divisors (see below), whose sum is σ = 62957856. Its totient is φ = 9640296.

The previous prime is 28989157. The next prime is 28989197. The reversal of 28989162 is 26198982.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7113 + ... + 10419.

It is an arithmetic number, because the mean of its divisors is an integer number (2623244).

Almost surely, 228989162 is an apocalyptic number.

28989162 is an abundant number, since it is smaller than the sum of its proper divisors (33968694).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28989162 is a wasteful number, since it uses less digits than its factorization.

28989162 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3802 (or 3799 counting only the distinct ones).

The product of its digits is 124416, while the sum is 45.

The square root of 28989162 is about 5384.1584300613. The cubic root of 28989162 is about 307.1934045011.

The spelling of 28989162 in words is "twenty-eight million, nine hundred eighty-nine thousand, one hundred sixty-two".

Divisors: 1 2 3 6 9 18 487 974 1461 2922 3307 4383 6614 8766 9921 19842 29763 59526 1610509 3221018 4831527 9663054 14494581 28989162