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23144105456 = 2417369123053
BaseRepresentation
bin10101100011011111…
…110000010111110000
32012201221201101002222
4111203133300113300
5334344342333311
614344322300212
71446350436053
oct254337602760
965657641088
1023144105456
1198a7275a8a
12459aab7668
13224aba6074
141197ac0a9a
15906cc7adb
hex5637f05f0

23144105456 has 40 divisors (see below), whose sum is σ = 47494375344. Its totient is φ = 10887920640.

The previous prime is 23144105441. The next prime is 23144105497. The reversal of 23144105456 is 65450144132.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 992426 + ... + 1015478.

Almost surely, 223144105456 is an apocalyptic number.

It is an amenable number.

23144105456 is an abundant number, since it is smaller than the sum of its proper divisors (24350269888).

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

23144105456 is a wasteful number, since it uses less digits than its factorization.

23144105456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26769 (or 26763 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 35.

Adding to 23144105456 its reverse (65450144132), we get a palindrome (88594249588).

The spelling of 23144105456 in words is "twenty-three billion, one hundred forty-four million, one hundred five thousand, four hundred fifty-six".

Divisors: 1 2 4 8 16 17 34 68 136 272 3691 7382 14764 23053 29528 46106 59056 62747 92212 125494 184424 250988 368848 391901 501976 783802 1003952 1567604 3135208 6270416 85088623 170177246 340354492 680708984 1361417968 1446506591 2893013182 5786026364 11572052728 23144105456