Base | Representation |
---|---|
bin | 10010101100010… |
… | …11001101011011 |
3 | 101221001200011201 |
4 | 21112023031123 |
5 | 310120324102 |
6 | 23320535031 |
7 | 3612563155 |
oct | 1126131533 |
9 | 357050151 |
10 | 156808027 |
11 | 80572212 |
12 | 44621477 |
13 | 2664391c |
14 | 16b7bad5 |
15 | db76987 |
hex | 958b35b |
156808027 has 4 divisors (see below), whose sum is σ = 160144416. Its totient is φ = 153471640.
The previous prime is 156808021. The next prime is 156808031. The reversal of 156808027 is 720808651.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 720808651 = 881 ⋅818171.
It is a cyclic number.
It is not a de Polignac number, because 156808027 - 219 = 156283739 is a prime.
It is not an unprimeable number, because it can be changed into a prime (156808021) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1668124 + ... + 1668217.
It is an arithmetic number, because the mean of its divisors is an integer number (40036104).
Almost surely, 2156808027 is an apocalyptic number.
156808027 is a deficient number, since it is larger than the sum of its proper divisors (3336389).
156808027 is an equidigital number, since it uses as much as digits as its factorization.
156808027 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 3336388.
The product of its (nonzero) digits is 26880, while the sum is 37.
The square root of 156808027 is about 12522.3011862836. The cubic root of 156808027 is about 539.2491014960.
The spelling of 156808027 in words is "one hundred fifty-six million, eight hundred eight thousand, twenty-seven".
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