Search a number
-
+
19068317 = 31615107
BaseRepresentation
bin100100010111…
…1010110011101
31022212202210222
41020233112131
514340141232
61520411125
7321035522
oct110572635
938782728
1019068317
11a844344
126476aa5
133c48338
142765149
151a19d12
hex122f59d

19068317 has 4 divisors (see below), whose sum is σ = 19683456. Its totient is φ = 18453180.

The previous prime is 19068299. The next prime is 19068319. The reversal of 19068317 is 71386091.

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.

It is a cyclic number.

It is not a de Polignac number, because 19068317 - 218 = 18806173 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19068319) 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, 307523 + ... + 307584.

It is an arithmetic number, because the mean of its divisors is an integer number (4920864).

Almost surely, 219068317 is an apocalyptic number.

It is an amenable number.

19068317 is a deficient number, since it is larger than the sum of its proper divisors (615139).

19068317 is an equidigital number, since it uses as much as digits as its factorization.

19068317 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 615138.

The product of its (nonzero) digits is 9072, while the sum is 35.

The square root of 19068317 is about 4366.7284092327. The cubic root of 19068317 is about 267.1596019593.

The spelling of 19068317 in words is "nineteen million, sixty-eight thousand, three hundred seventeen".

Divisors: 1 31 615107 19068317