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289712998 = 2709204311
BaseRepresentation
bin10001010001001…
…010101101100110
3202012010221112001
4101101022231212
51043131303443
644425315514
710115343211
oct2121125546
9665127461
10289712998
11139598733
1281035b9a
1348038713
142a696778
151a67ad4d
hex1144ab66

289712998 has 8 divisors (see below), whose sum is σ = 435184560. Its totient is φ = 144651480.

The previous prime is 289712989. The next prime is 289713001. The reversal of 289712998 is 899217982.

289712998 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 100738 + ... + 103573.

It is an arithmetic number, because the mean of its divisors is an integer number (54398070).

Almost surely, 2289712998 is an apocalyptic number.

289712998 is a deficient number, since it is larger than the sum of its proper divisors (145471562).

289712998 is a wasteful number, since it uses less digits than its factorization.

289712998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 205022.

The product of its digits is 1306368, while the sum is 55.

The square root of 289712998 is about 17020.9576111334. The cubic root of 289712998 is about 661.6921667939.

The spelling of 289712998 in words is "two hundred eighty-nine million, seven hundred twelve thousand, nine hundred ninety-eight".

Divisors: 1 2 709 1418 204311 408622 144856499 289712998