Search a number
-
+
19168061 = 1117102503
BaseRepresentation
bin100100100011…
…1101100111101
31100001211122012
41021013230331
514401334221
61522501005
7321632363
oct111075475
940054565
1019168061
11a902280
126504765
133c81863
14278d633
151a3965b
hex1247b3d

19168061 has 8 divisors (see below), whose sum is σ = 22140864. Its totient is φ = 16400320.

The previous prime is 19168031. The next prime is 19168063. The reversal of 19168061 is 16086191.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 19168061 - 222 = 14973757 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 (19168063) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 51065 + ... + 51438.

It is an arithmetic number, because the mean of its divisors is an integer number (2767608).

Almost surely, 219168061 is an apocalyptic number.

19168061 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

19168061 is a deficient number, since it is larger than the sum of its proper divisors (2972803).

19168061 is a wasteful number, since it uses less digits than its factorization.

19168061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102531.

The product of its (nonzero) digits is 2592, while the sum is 32.

The square root of 19168061 is about 4378.1344200470. The cubic root of 19168061 is about 267.6246183269.

The spelling of 19168061 in words is "nineteen million, one hundred sixty-eight thousand, sixty-one".

Divisors: 1 11 17 187 102503 1127533 1742551 19168061