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289631037 = 3109788007
BaseRepresentation
bin10001010000110…
…110101100111101
3202011222210002110
4101100312230331
51043121143122
644423444233
710114552233
oct2120665475
9664883073
10289631037
111395420a3
1280bb6679
134800a317
142a674953
151a66190c
hex11436b3d

289631037 has 8 divisors (see below), whose sum is σ = 386531136. Its totient is φ = 192909152.

The previous prime is 289631029. The next prime is 289631051. The reversal of 289631037 is 730136982.

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 289631037 - 23 = 289631029 is a prime.

It is a super-2 number, since 2×2896310372 = 167772275187390738, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 289630986 and 289631004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (289611037) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40713 + ... + 47294.

It is an arithmetic number, because the mean of its divisors is an integer number (48316392).

Almost surely, 2289631037 is an apocalyptic number.

It is an amenable number.

289631037 is a deficient number, since it is larger than the sum of its proper divisors (96900099).

289631037 is a wasteful number, since it uses less digits than its factorization.

289631037 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89107.

The product of its (nonzero) digits is 54432, while the sum is 39.

The square root of 289631037 is about 17018.5497913306. The cubic root of 289631037 is about 661.6297624292.

It can be divided in two parts, 2896 and 31037, that added together give a palindrome (33933).

The spelling of 289631037 in words is "two hundred eighty-nine million, six hundred thirty-one thousand, thirty-seven".

Divisors: 1 3 1097 3291 88007 264021 96543679 289631037