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244486889 = 1923891741
BaseRepresentation
bin11101001001010…
…01001011101001
3122001001012221222
432210221023221
51000042040024
640132111425
76026050523
oct1644511351
9561035858
10244486889
11116008689
1269a65575
133b8621ca
1424682a13
15166e585e
hexe9292e9

244486889 has 12 divisors (see below), whose sum is σ = 258843780. Its totient is φ = 230891040.

The previous prime is 244486883. The next prime is 244486897. The reversal of 244486889 is 988684442.

244486889 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 17472400 + 227014489 = 4180^2 + 15067^2 .

It is not a de Polignac number, because 244486889 - 24 = 244486873 is a prime.

It is a Smith number, since the sum of its digits (53) coincides with the sum of the digits of its prime factors.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 244486889.

It is not an unprimeable number, because it can be changed into a prime (244486883) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 139559 + ... + 141299.

It is an arithmetic number, because the mean of its divisors is an integer number (21570315).

Almost surely, 2244486889 is an apocalyptic number.

It is an amenable number.

244486889 is a deficient number, since it is larger than the sum of its proper divisors (14356891).

244486889 is a wasteful number, since it uses less digits than its factorization.

244486889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2168 (or 2149 counting only the distinct ones).

The product of its digits is 3538944, while the sum is 53.

The square root of 244486889 is about 15636.0765219412. The cubic root of 244486889 is about 625.2953390311.

The spelling of 244486889 in words is "two hundred forty-four million, four hundred eighty-six thousand, eight hundred eighty-nine".

Divisors: 1 19 361 389 1741 7391 33079 140429 628501 677249 12867731 244486889