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10231289 = 47217687
BaseRepresentation
bin100111000001…
…110111111001
3201020210200122
4213001313321
510104400124
61003143025
7152651555
oct47016771
921223618
1010231289
115858a12
123514a75
132172c23
141504865
15d7175e
hex9c1df9

10231289 has 4 divisors (see below), whose sum is σ = 10449024. Its totient is φ = 10013556.

The previous prime is 10231283. The next prime is 10231301. The reversal of 10231289 is 98213201.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 10231289 - 212 = 10227193 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (10231283) 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, 108797 + ... + 108890.

It is an arithmetic number, because the mean of its divisors is an integer number (2612256).

Almost surely, 210231289 is an apocalyptic number.

It is an amenable number.

10231289 is a deficient number, since it is larger than the sum of its proper divisors (217735).

10231289 is an equidigital number, since it uses as much as digits as its factorization.

10231289 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 217734.

The product of its (nonzero) digits is 864, while the sum is 26.

The square root of 10231289 is about 3198.6386166618. The cubic root of 10231289 is about 217.0918155778.

The spelling of 10231289 in words is "ten million, two hundred thirty-one thousand, two hundred eighty-nine".

Divisors: 1 47 217687 10231289