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9712144 = 241353881
BaseRepresentation
bin100101000011…
…001000010000
3200021102120001
4211003020100
54441242034
6544055344
7145360201
oct45031020
920242501
109712144
115533972
123304554
132020840
14140b5a8
15cbca14
hex943210

9712144 has 40 divisors (see below), whose sum is σ = 20670552. Its totient is φ = 4392960.

The previous prime is 9712133. The next prime is 9712147. The reversal of 9712144 is 4412179.

It can be written as a sum of positive squares in 4 ways, for example, as 176400 + 9535744 = 420^2 + 3088^2 .

It is a nialpdrome in base 16.

It is not an unprimeable number, because it can be changed into a prime (9712147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10584 + ... + 11464.

Almost surely, 29712144 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 9712144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10335276).

9712144 is an abundant number, since it is smaller than the sum of its proper divisors (10958408).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

9712144 is a wasteful number, since it uses less digits than its factorization.

9712144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 955 (or 949 counting only the distinct ones).

The product of its digits is 2016, while the sum is 28.

The square root of 9712144 is about 3116.4312923599. The cubic root of 9712144 is about 213.3560869828.

The spelling of 9712144 in words is "nine million, seven hundred twelve thousand, one hundred forty-four".

Divisors: 1 2 4 8 13 16 26 52 53 104 106 208 212 424 689 848 881 1378 1762 2756 3524 5512 7048 11024 11453 14096 22906 45812 46693 91624 93386 183248 186772 373544 607009 747088 1214018 2428036 4856072 9712144