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289197342 = 23277132327
BaseRepresentation
bin10001001111001…
…100110100011110
3202011011202011200
4101033030310132
51043013303332
644410300330
710111064640
oct2117146436
9664152150
10289197342
11139276275
1280a276a6
1347bb7ab5
142a5a0890
151a5c817c
hex113ccd1e

289197342 has 48 divisors (see below), whose sum is σ = 726216192. Its totient is φ = 81461520.

The previous prime is 289197301. The next prime is 289197343. The reversal of 289197342 is 243791982.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (289197343) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7218 + ... + 25109.

It is an arithmetic number, because the mean of its divisors is an integer number (15129504).

Almost surely, 2289197342 is an apocalyptic number.

289197342 is an abundant number, since it is smaller than the sum of its proper divisors (437018850).

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

289197342 is a wasteful number, since it uses less digits than its factorization.

289197342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32413 (or 32410 counting only the distinct ones).

The product of its digits is 217728, while the sum is 45.

The square root of 289197342 is about 17005.8031859715. The cubic root of 289197342 is about 661.2993548566.

The spelling of 289197342 in words is "two hundred eighty-nine million, one hundred ninety-seven thousand, three hundred forty-two".

Divisors: 1 2 3 6 7 9 14 18 21 42 63 71 126 142 213 426 497 639 994 1278 1491 2982 4473 8946 32327 64654 96981 193962 226289 290943 452578 581886 678867 1357734 2036601 2295217 4073202 4590434 6885651 13771302 16066519 20656953 32133038 41313906 48199557 96399114 144598671 289197342