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244631897 = 1989144667
BaseRepresentation
bin11101001010011…
…00100101011001
3122001022120212122
432211030211121
51000111210042
640135151025
76030223346
oct1645144531
9561276778
10244631897
111160a7624
1269b15475
133b8b3203
14246bd7cd
15167237d2
hexe94c959

244631897 has 8 divisors (see below), whose sum is σ = 260402400. Its totient is φ = 229150944.

The previous prime is 244631869. The next prime is 244631911. The reversal of 244631897 is 798136442.

244631897 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 244631897 - 210 = 244630873 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (244631837) 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, 70643 + ... + 74024.

It is an arithmetic number, because the mean of its divisors is an integer number (32550300).

Almost surely, 2244631897 is an apocalyptic number.

It is an amenable number.

244631897 is a deficient number, since it is larger than the sum of its proper divisors (15770503).

244631897 is a wasteful number, since it uses less digits than its factorization.

244631897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144775.

The product of its digits is 290304, while the sum is 44.

The square root of 244631897 is about 15640.7128034498. The cubic root of 244631897 is about 625.4189378963.

It can be divided in two parts, 2446 and 31897, that added together give a palindrome (34343).

The spelling of 244631897 in words is "two hundred forty-four million, six hundred thirty-one thousand, eight hundred ninety-seven".

Divisors: 1 19 89 1691 144667 2748673 12875363 244631897