Base | Representation |
---|---|
bin | 1101000100010000010010… |
… | …11101111100011000011000 |
3 | 10202201220011022210100121112 |
4 | 12202020021131330120120 |
5 | 12231232141423222210 |
6 | 141035552203355452 |
7 | 6023632445442065 |
oct | 642101135743030 |
9 | 122656138710545 |
10 | 28733490054680 |
11 | 9178894067704 |
12 | 32808ab822b88 |
13 | 13057307a3818 |
14 | 7149cb979c6c |
15 | 34c6560c2d05 |
hex | 1a220977c618 |
28733490054680 has 32 divisors (see below), whose sum is σ = 64662913869840. Its totient is φ = 11491162911360.
The previous prime is 28733490054653. The next prime is 28733490054707. The reversal of 28733490054680 is 8645009433782.
It is an interprime number because it is at equal distance from previous prime (28733490054653) and next prime (28733490054707).
It is a super-2 number, since 2×287334900546802 (a number of 28 digits) contains 22 as substring.
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, 69576251 + ... + 69988010.
Almost surely, 228733490054680 is an apocalyptic number.
28733490054680 is a gapful number since it is divisible by the number (20) formed by its first and last digit.
It is an amenable number.
28733490054680 is an abundant number, since it is smaller than the sum of its proper divisors (35929423815160).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
28733490054680 is a wasteful number, since it uses less digits than its factorization.
28733490054680 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 139569419 (or 139569415 counting only the distinct ones).
The product of its (nonzero) digits is 34836480, while the sum is 59.
The spelling of 28733490054680 in words is "twenty-eight trillion, seven hundred thirty-three billion, four hundred ninety million, fifty-four thousand, six hundred eighty".
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