| Base | Representation |
|---|---|
| bin | 1101001001100110100110… |
| … | …10101011110010101101000 |
| 3 | 10210101110111221122011022122 |
| 4 | 12210303103111132111220 |
| 5 | 12242240024424133121 |
| 6 | 141300224112210412 |
| 7 | 6043126536550400 |
| oct | 644632325362550 |
| 9 | 123343457564278 |
| 10 | 28917265458536 |
| 11 | 923981a530664 |
| 12 | 32b0439839a08 |
| 13 | 1319b6a650040 |
| 14 | 71d862d43800 |
| 15 | 35230ee895ab |
| hex | 1a4cd355e568 |
28917265458536 has 192 divisors, whose sum is σ = 72017588598480. Its totient is φ = 10752155688960.
The previous prime is 28917265458517. The next prime is 28917265458539. The reversal of 28917265458536 is 63585456271982.
It can be written as a sum of positive squares in 8 ways, for example, as 15783092166436 + 13134173292100 = 3972794^2 + 3624110^2 .
It is a Smith number, since the sum of its digits (71) coincides with the sum of the digits of its prime factors.
It is a self number, because there is not a number n which added to its sum of digits gives 28917265458536.
It is not an unprimeable number, because it can be changed into a prime (28917265458539) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (23) of ones.
It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 63273566 + ... + 63728946.
Almost surely, 228917265458536 is an apocalyptic number.
28917265458536 is a gapful number since it is divisible by the number (26) formed by its first and last digit.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 28917265458536, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36008794299240).
28917265458536 is an abundant number, since it is smaller than the sum of its proper divisors (43100323139944).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
28917265458536 is a wasteful number, since it uses less digits than its factorization.
28917265458536 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 456164 (or 456153 counting only the distinct ones).
The product of its digits is 870912000, while the sum is 71.
The spelling of 28917265458536 in words is "twenty-eight trillion, nine hundred seventeen billion, two hundred sixty-five million, four hundred fifty-eight thousand, five hundred thirty-six".
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