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289107342 = 23216061519
BaseRepresentation
bin10001001110110…
…110110110001110
3202011000011201100
4101032312312032
51043002413332
644404323530
710110241356
oct2116666616
9664004640
10289107342
11139214697
12809a35a6
1347b85b44
142a579b66
151a5ab67c
hex113b6d8e

289107342 has 12 divisors (see below), whose sum is σ = 626399280. Its totient is φ = 96369108.

The previous prime is 289107323. The next prime is 289107431. The reversal of 289107342 is 243701982.

It is a junction number, because it is equal to n+sod(n) for n = 289107297 and 289107306.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 8030742 + ... + 8030777.

It is an arithmetic number, because the mean of its divisors is an integer number (52199940).

Almost surely, 2289107342 is an apocalyptic number.

289107342 is an abundant number, since it is smaller than the sum of its proper divisors (337291938).

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

289107342 is a wasteful number, since it uses less digits than its factorization.

289107342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16061527 (or 16061524 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 36.

The square root of 289107342 is about 17003.1568245429. The cubic root of 289107342 is about 661.2307475905.

The spelling of 289107342 in words is "two hundred eighty-nine million, one hundred seven thousand, three hundred forty-two".

Divisors: 1 2 3 6 9 18 16061519 32123038 48184557 96369114 144553671 289107342