Base | Representation |
---|---|
bin | 11001010111000101… |
… | …010001010011001001 |
3 | 2121021202120010102122 |
4 | 121113011101103021 |
5 | 421232041200040 |
6 | 20302030341025 |
7 | 1652543002430 |
oct | 312705212311 |
9 | 77252503378 |
10 | 27230803145 |
11 | 10604095497 |
12 | 533b65a775 |
13 | 274c761590 |
14 | 1464762117 |
15 | a959761b5 |
hex | 6571514c9 |
27230803145 has 16 divisors (see below), whose sum is σ = 40217802240. Its totient is φ = 17236200384.
The previous prime is 27230803141. The next prime is 27230803153. The reversal of 27230803145 is 54130803272.
It is not a de Polignac number, because 27230803145 - 22 = 27230803141 is a prime.
It is a Harshad number since it is a multiple of its sum of digits (35).
It is a Curzon number.
It is not an unprimeable number, because it can be changed into a prime (27230803141) 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, 29923505 + ... + 29924414.
It is an arithmetic number, because the mean of its divisors is an integer number (2513612640).
Almost surely, 227230803145 is an apocalyptic number.
It is an amenable number.
27230803145 is a deficient number, since it is larger than the sum of its proper divisors (12986999095).
27230803145 is a wasteful number, since it uses less digits than its factorization.
27230803145 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 59847944.
The product of its (nonzero) digits is 40320, while the sum is 35.
The spelling of 27230803145 in words is "twenty-seven billion, two hundred thirty million, eight hundred three thousand, one hundred forty-five".
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