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289100492 = 22490314741
BaseRepresentation
bin10001001110110…
…101001011001100
3202010222211022122
4101032311023030
51043002203432
644404232112
710110212402
oct2116651314
9663884278
10289100492
1113920a52a
128099b638
1347b829a5
142a577472
151a5a9612
hex113b52cc

289100492 has 12 divisors (see below), whose sum is σ = 506063376. Its totient is φ = 144510960.

The previous prime is 289100491. The next prime is 289100527. The reversal of 289100492 is 294001982.

It is a hoax number, since the sum of its digits (35) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (289100491) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12242 + ... + 26982.

It is an arithmetic number, because the mean of its divisors is an integer number (42171948).

Almost surely, 2289100492 is an apocalyptic number.

It is an amenable number.

289100492 is a deficient number, since it is larger than the sum of its proper divisors (216962884).

289100492 is a wasteful number, since it uses less digits than its factorization.

289100492 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19648 (or 19646 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 35.

The square root of 289100492 is about 17002.9553901667. The cubic root of 289100492 is about 661.2255252322.

The spelling of 289100492 in words is "two hundred eighty-nine million, one hundred thousand, four hundred ninety-two".

Divisors: 1 2 4 4903 9806 14741 19612 29482 58964 72275123 144550246 289100492