Base | Representation |
---|---|
bin | 11010111100110100… |
… | …000110111001110011 |
3 | 2202200201011101022200 |
4 | 122330310012321303 |
5 | 433231010031042 |
6 | 21143240434243 |
7 | 2043046241610 |
oct | 327464067163 |
9 | 82621141280 |
10 | 28937580147 |
11 | 112aa5672a3 |
12 | 5737178983 |
13 | 29622416b8 |
14 | 15872cd507 |
15 | b45717c4c |
hex | 6bcd06e73 |
28937580147 has 12 divisors (see below), whose sum is σ = 47769973680. Its totient is φ = 16535760048.
The previous prime is 28937580131. The next prime is 28937580169. The reversal of 28937580147 is 74108573982.
It is a happy number.
28937580147 is a `hidden beast` number, since 28 + 9 + 37 + 580 + 1 + 4 + 7 = 666.
It is not a de Polignac number, because 28937580147 - 24 = 28937580131 is a prime.
It is a junction number, because it is equal to n+sod(n) for n = 28937580093 and 28937580102.
It is not an unprimeable number, because it can be changed into a prime (28937580647) by changing a digit.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 229663272 + ... + 229663397.
It is an arithmetic number, because the mean of its divisors is an integer number (3980831140).
Almost surely, 228937580147 is an apocalyptic number.
28937580147 is a deficient number, since it is larger than the sum of its proper divisors (18832393533).
28937580147 is a wasteful number, since it uses less digits than its factorization.
28937580147 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 459326682 (or 459326679 counting only the distinct ones).
The product of its (nonzero) digits is 3386880, while the sum is 54.
The spelling of 28937580147 in words is "twenty-eight billion, nine hundred thirty-seven million, five hundred eighty thousand, one hundred forty-seven".
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