Base | Representation |
---|---|
bin | 1101000100100000010010… |
… | …00111111100100110111101 |
3 | 10202202201022120102021211220 |
4 | 12202100021013330212331 |
5 | 12231402232000114122 |
6 | 141043532052103553 |
7 | 6024355251613020 |
oct | 642201107744675 |
9 | 122681276367756 |
10 | 28742074223037 |
11 | 918149965a41a |
12 | 32824a6604bb9 |
13 | 130649b05b496 |
14 | 7151a3a691b7 |
15 | 34c9a9a1025c |
hex | 1a24091fc9bd |
28742074223037 has 16 divisors (see below), whose sum is σ = 43797542853120. Its totient is φ = 16424006256432.
The previous prime is 28742074222993. The next prime is 28742074223041. The reversal of 28742074223037 is 73032247024782.
It is not a de Polignac number, because 28742074223037 - 26 = 28742074222973 is a prime.
It is a super-2 number, since 2×287420742230372 (a number of 28 digits) contains 22 as substring.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (28742078223037) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10476258 + ... + 12931980.
It is an arithmetic number, because the mean of its divisors is an integer number (2737346428320).
Almost surely, 228742074223037 is an apocalyptic number.
It is an amenable number.
28742074223037 is a deficient number, since it is larger than the sum of its proper divisors (15055468630083).
28742074223037 is a wasteful number, since it uses less digits than its factorization.
28742074223037 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 3013072.
The product of its (nonzero) digits is 6322176, while the sum is 51.
The spelling of 28742074223037 in words is "twenty-eight trillion, seven hundred forty-two billion, seventy-four million, two hundred twenty-three thousand, thirty-seven".
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