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289374974 = 2720669641
BaseRepresentation
bin10001001111111…
…000001011111110
3202011111202211122
4101033320023332
51043034444344
644414150542
710112434550
oct2117701376
9664452748
10289374974
11139387779
1280ab2452
1347c4a8c5
142a6094d0
151a610aee
hex113f82fe

289374974 has 8 divisors (see below), whose sum is σ = 496071408. Its totient is φ = 124017840.

The previous prime is 289374971. The next prime is 289374979. The reversal of 289374974 is 479473982.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (289374971) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10334807 + ... + 10334834.

It is an arithmetic number, because the mean of its divisors is an integer number (62008926).

Almost surely, 2289374974 is an apocalyptic number.

289374974 is a deficient number, since it is larger than the sum of its proper divisors (206696434).

289374974 is a wasteful number, since it uses less digits than its factorization.

289374974 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20669650.

The product of its digits is 3048192, while the sum is 53.

The square root of 289374974 is about 17011.0250719938. The cubic root of 289374974 is about 661.4347224962.

The spelling of 289374974 in words is "two hundred eighty-nine million, three hundred seventy-four thousand, nine hundred seventy-four".

Divisors: 1 2 7 14 20669641 41339282 144687487 289374974