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289277641 = 1943354073
BaseRepresentation
bin10001001111100…
…000011011001001
3202011022211022201
4101033200123021
51043023341031
644412120201
710111551022
oct2117403311
9664284281
10289277641
11139320634
1280a66061
1347c15503
142a5c1c49
151a5e1d61
hex113e06c9

289277641 has 8 divisors (see below), whose sum is σ = 311585120. Its totient is φ = 267678432.

The previous prime is 289277633. The next prime is 289277669. The reversal of 289277641 is 146772982.

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

It is a cyclic number.

It is not a de Polignac number, because 289277641 - 23 = 289277633 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 289277591 and 289277600.

It is not an unprimeable number, because it can be changed into a prime (289277441) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 176220 + ... + 177853.

It is an arithmetic number, because the mean of its divisors is an integer number (38948140).

Almost surely, 2289277641 is an apocalyptic number.

It is an amenable number.

289277641 is a deficient number, since it is larger than the sum of its proper divisors (22307479).

289277641 is a wasteful number, since it uses less digits than its factorization.

289277641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 354135.

The product of its digits is 338688, while the sum is 46.

The square root of 289277641 is about 17008.1639514675. The cubic root of 289277641 is about 661.3605550075.

The spelling of 289277641 in words is "two hundred eighty-nine million, two hundred seventy-seven thousand, six hundred forty-one".

Divisors: 1 19 43 817 354073 6727387 15225139 289277641