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289674938 = 2720691067
BaseRepresentation
bin10001010001000…
…001011010111010
3202012002000022102
4101101001122322
51043124044223
644424423402
710115124230
oct2121013272
9665060272
10289674938
11139572083
1281017b62
13480242b7
142a686950
151a66e928
hex114416ba

289674938 has 8 divisors (see below), whose sum is σ = 496585632. Its totient is φ = 124146396.

The previous prime is 289674919. The next prime is 289674953. The reversal of 289674938 is 839476982.

It is a happy number.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10345520 + ... + 10345547.

It is an arithmetic number, because the mean of its divisors is an integer number (62073204).

Almost surely, 2289674938 is an apocalyptic number.

289674938 is a deficient number, since it is larger than the sum of its proper divisors (206910694).

289674938 is a wasteful number, since it uses less digits than its factorization.

289674938 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20691076.

The product of its digits is 5225472, while the sum is 56.

The square root of 289674938 is about 17019.8395409593. The cubic root of 289674938 is about 661.6631897178.

The spelling of 289674938 in words is "two hundred eighty-nine million, six hundred seventy-four thousand, nine hundred thirty-eight".

Divisors: 1 2 7 14 20691067 41382134 144837469 289674938