Base | Representation |
---|---|
bin | 11100101101011101… |
… | …000101111111010001 |
3 | 2221120102010210001221 |
4 | 130231131011333101 |
5 | 1001113301404442 |
6 | 22054545325041 |
7 | 2140634225365 |
oct | 345535057721 |
9 | 87512123057 |
10 | 30827372497 |
11 | 1208a280259 |
12 | 5b84036781 |
13 | 2ba391001c |
14 | 16c629b2a5 |
15 | c065ab467 |
hex | 72d745fd1 |
30827372497 has 4 divisors (see below), whose sum is σ = 30831517296. Its totient is φ = 30823227700.
The previous prime is 30827372449. The next prime is 30827372503. The reversal of 30827372497 is 79427372803.
It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 79427372803 = 52727 ⋅1506389.
It is a cyclic number.
It is not a de Polignac number, because 30827372497 - 211 = 30827370449 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (30821372497) 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, 2061223 + ... + 2076124.
It is an arithmetic number, because the mean of its divisors is an integer number (7707879324).
Almost surely, 230827372497 is an apocalyptic number.
It is an amenable number.
30827372497 is a deficient number, since it is larger than the sum of its proper divisors (4144799).
30827372497 is an equidigital number, since it uses as much as digits as its factorization.
30827372497 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 4144798.
The product of its (nonzero) digits is 3556224, while the sum is 52.
The spelling of 30827372497 in words is "thirty billion, eight hundred twenty-seven million, three hundred seventy-two thousand, four hundred ninety-seven".
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