Search a number
-
+
19230951 = 36410317
BaseRepresentation
bin100100101011…
…1000011100111
31100012000220110
41021113003213
514410342301
61524104103
7322313625
oct111270347
940160813
1019230951
11a945553
126535033
133ca437c
1427a8515
151a4d0d6
hex12570e7

19230951 has 4 divisors (see below), whose sum is σ = 25641272. Its totient is φ = 12820632.

The previous prime is 19230941. The next prime is 19230971. The reversal of 19230951 is 15903291.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 15903291 = 35301097.

It is not a de Polignac number, because 19230951 - 29 = 19230439 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 (19230941) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3205156 + ... + 3205161.

It is an arithmetic number, because the mean of its divisors is an integer number (6410318).

Almost surely, 219230951 is an apocalyptic number.

19230951 is a deficient number, since it is larger than the sum of its proper divisors (6410321).

19230951 is an equidigital number, since it uses as much as digits as its factorization.

19230951 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6410320.

The product of its (nonzero) digits is 2430, while the sum is 30.

The square root of 19230951 is about 4385.3108213672. The cubic root of 19230951 is about 267.9169890304.

The spelling of 19230951 in words is "nineteen million, two hundred thirty thousand, nine hundred fifty-one".

Divisors: 1 3 6410317 19230951